{"id":11563,"date":"2023-12-30T00:00:23","date_gmt":"2023-12-29T20:30:23","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/"},"modified":"2023-12-30T00:00:23","modified_gmt":"2023-12-29T20:30:23","slug":"%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/","title":{"rendered":"\u062d\u0644 \u0645\u0634\u06a9\u0644: \u062a\u0639\u0648\u06cc\u0636 \u0628\u062f Bash"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/#%d9%85%d8%ab%d8%a7%d9%84_01\" >\u0645\u062b\u0627\u0644 01<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/#%d9%85%d8%ab%d8%a7%d9%84_02\" >\u0645\u062b\u0627\u0644 02<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/#%d9%85%d8%ab%d8%a7%d9%84_03\" >\u0645\u062b\u0627\u0644 03<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/#%d9%85%d8%ab%d8%a7%d9%84_04\" >\u0645\u062b\u0627\u0644 04<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%ad%d9%84-%d9%85%d8%b4%da%a9%d9%84-%d8%aa%d8%b9%d9%88%db%8c%d8%b6-%d8%a8%d8%af-bash\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div id=\"wpbody\">\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0647\u0646\u06af\u0627\u0645 \u062a\u0648\u0633\u0639\u0647 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0627\u06cc Bash \u0645\u0634\u06a9\u0644 \u0646\u062d\u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0631\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f.  \u067e\u0633 \u0627\u0632 \u0645\u0631\u0648\u0631 \u062f\u0631 \u0627\u0646\u062c\u0645\u0646 \u0647\u0627\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0648\u062c\u0647 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0646\u0647\u0627 \u0646\u06cc\u0633\u062a\u06cc\u062f.  \u0627\u0641\u0631\u0627\u062f \u062f\u06cc\u06af\u0631 \u0628\u0627 \u0647\u0645\u06cc\u0646 \u0627\u0634\u062a\u0628\u0627\u0647 \u0631\u0648\u0628\u0631\u0648 \u0645\u06cc \u0634\u0648\u0646\u062f.  \u0627\u06cc\u0646 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u0686\u0627\u067e\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0627\u062c\u0631\u0627\u06cc \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a Shell \u0631\u062e \u0645\u06cc \u062f\u0647\u062f \u0648 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644 \u0645\u062e\u062a\u0644\u0641\u06cc \u0627\u062a\u0641\u0627\u0642 \u0628\u06cc\u0641\u062a\u062f.  \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0632 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0648 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631\u0647\u0627\u06cc \u0627\u0634\u062a\u0628\u0627\u0647 \u0627\u0636\u0627\u0641\u0647 \u0634\u062f\u0647 \u0628\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u062f\u0648 \u062f\u0644\u06cc\u0644 \u0639\u0645\u062f\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0627\u0633\u062a.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0628\u06cc\u0646\u06cc\u0645 \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u0633\u062a\u0647 \u062e\u0648\u062f \u0631\u0627 \u0628\u0627\u0639\u062b \u0627\u06cc\u062c\u0627\u062f \u0627\u06cc\u0646 \u062e\u0637\u0627 \u06a9\u0646\u06cc\u0645 \u0648 \u0686\u06af\u0648\u0646\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0637\u0631\u0641 \u06a9\u0646\u06cc\u0645.  \u0628\u0627 \u062c\u062f\u06cc\u062f \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u062f bash \u0641\u0627\u06cc\u0644 \u0628\u0627 \u06a9\u0648\u0626\u0631\u06cc \u00abtouch\u00bb \u0627\u0648\u0628\u0648\u0646\u062a\u0648 \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0648 \u0622\u0646 \u0631\u0627 \u062f\u0631 \u00abGNU \u0648\u06cc\u0631\u0627\u06cc\u0634\u06af\u0631 \u0646\u0627\u0646\u0648.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ sub.sh \u0631\u0627 \u0644\u0645\u0633 \u06a9\u0646\u06cc\u062f<br \/>\n\u0646\u0627\u0646\u0648 \u0633\u0627\u0628.\u0634<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176839 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"288\" height=\"34\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84_01\"><\/span>\u0645\u062b\u0627\u0644 01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0648\u0644\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0628\u0631\u0627\u06cc \u062e\u0637\u0627\u06cc \u0628\u062f \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0646\u062d\u0648 \u06a9\u062f \u0627\u0634\u062a\u0628\u0627\u0647 \u0627\u0633\u062a.  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0627\u06cc\u0646 \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645.  \u0634\u0631\u0648\u0639 \u0627\u0632 \u0627\u0648\u0644 bash \u06a9\u062f\u060c \u0645\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 bash \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u062f\u0631 \u062e\u0637 \u0627\u0648\u0644 \u0627\u0632 bash \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c &#8220;#!\/bin\/bash&#8221;.  \u067e\u0633 \u0627\u0632 \u0627\u06cc\u0646\u060c \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0633\u0627\u062f\u0647 &#8220;V&#8221; \u0631\u0627 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 \u0644\u06cc\u0633\u062a \u0627\u0648\u0628\u0648\u0646\u062a\u0648 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 \u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0631\u062f\u06cc\u0645.  \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u062f\u0627\u062e\u0644 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0648 \u0628\u0627 \u0639\u0644\u0627\u0645\u062a &#8220;$&#8221; \u062f\u0631\u062c \u0634\u062f\u0647 \u0627\u0633\u062a \u062a\u0627 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0641\u0631\u0645\u0627\u0646 \u067e\u0648\u0633\u062a\u0647 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f.  \u067e\u0633 \u0627\u0632 \u0627\u06cc\u0646\u060c \u062f\u0633\u062a\u0648\u0631 echo \u0627\u06cc\u0646\u062c\u0627 \u0627\u0633\u062a \u062a\u0627 \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 &#8220;v&#8221; \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0647\u062f \u0631\u0648\u06cc \u067e\u0648\u0633\u062a\u0647.  \u06a9\u062f \u0645\u0627 \u06a9\u0627\u0645\u0644 \u0648 \u0622\u0645\u0627\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176840 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"400\" height=\"68\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881811_367_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-02-300x51.png 300w\" data-lazy-sizes=\"(max-width: 400px) 100vw, 400px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881811_367_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176840 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881811_367_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"400\" height=\"68\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881811_367_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-02-300x51.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" title=\"\"><\/p>\n<p>\u0645\u0627 \u0646\u062c\u0627\u062a \u062f\u0627\u062f\u06cc\u0645 bash \u06a9\u062f \u0648 \u0628\u0631\u06af\u0634\u062a \u0628\u0647 terminal \u067e\u0633 \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Ctrl+S \u0648 Ctrl+X \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628.  \u0645\u0627 \u0627\u06cc\u0646 \u062a\u0627\u0632\u0647 \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 bash \u0641\u0627\u06cc\u0644 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627 &#8220;bash&#8221; \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0648 &#8220;\u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f&#8221; \u0631\u0627 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0631\u062f\u0645 \u0631\u0648\u06cc \u0635\u0641\u062d\u0647 \u0646\u0645\u0627\u06cc\u0634 \u0645\u0627  \u0627\u06cc\u0646 \u062e\u0637\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0645\u062c\u0639\u062f &#8220;{}&#8221; \u062f\u0631 \u0627\u0637\u0631\u0627\u0641 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0644\u06cc\u0633\u062a \u062f\u0631 \u06a9\u062f \u0631\u062e \u062f\u0627\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176841 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"396\" height=\"34\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_160_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 396w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-03-300x26.png 300w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-03-380x34.png 380w\" data-lazy-sizes=\"(max-width: 396px) 100vw, 396px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_160_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176841 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_160_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"396\" height=\"34\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_160_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 396w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-03-300x26.png 300w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-03-380x34.png 380w\" sizes=\"(max-width: 396px) 100vw, 396px\" title=\"\"><\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0639\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0631\u0627\u06cc \u0631\u0641\u0639 \u0627\u06cc\u0646 \u062e\u0637\u0627 \u0628\u0647 \u0631\u0648\u0632 \u06a9\u0646\u06cc\u0645.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0628\u0631\u0627\u06a9\u062a\u200c\u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0631\u0627 \u0627\u0632 \u062e\u0637 \u062f\u0648\u0645 \u06a9\u062f \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0648 \u0628\u0627 \u0628\u0631\u0627\u06a9\u062a\u200c\u0647\u0627\u06cc \u0633\u0627\u062f\u0647 \u00ab()\u00bb \u06a9\u0647 \u062f\u0631 \u0632\u06cc\u0631 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.  \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc\u060c \u06a9\u062f \u062b\u0627\u0628\u062a \u0645\u06cc \u0645\u0627\u0646\u062f \u0632\u06cc\u0631\u0627 \u0645\u0634\u06a9\u0644\u06cc \u062f\u0631 \u06a9\u062f \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.  \u0627\u06a9\u0646\u0648\u0646 \u0627\u06cc\u0646 \u06a9\u062f \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176842 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"400\" height=\"68\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_839_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-04-300x51.png 300w\" data-lazy-sizes=\"(max-width: 400px) 100vw, 400px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_839_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176842 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_839_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"400\" height=\"68\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881812_839_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-04-300x51.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" title=\"\"><\/p>\n<p>\u067e\u0633 \u0627\u0632 \u062e\u0631\u0648\u062c \u0627\u0632 GNU \u0648\u06cc\u0631\u0627\u06cc\u0634\u06af\u0631 \u0646\u0627\u0646\u0648\u060c \u0645\u0627 \u0622\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f bash \u0641\u0627\u06cc\u0644 &#8220;sub.sh&#8221; \u06a9\u062f \u0628\u0647 \u0631\u0648\u0632 \u0634\u062f\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 &#8220;bash\u201d \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644\u06cc \u06a9\u0647 \u062f\u0631 \u0632\u06cc\u0631 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u06a9\u0647 \u062e\u0637\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f \u067e\u0633 \u0627\u0632 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u06a9\u062f \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0644\u06cc\u0633\u062a \u062f\u0631\u062c \u0634\u062f\u0647 \u062f\u0631 \u0645\u062a\u063a\u06cc\u0631 &#8220;v&#8221; \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0627\u062c\u0631\u0627 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u062f\u0633\u062a\u0648\u0631 list \u062a\u0645\u0627\u0645 \u0645\u062d\u062a\u0648\u06cc\u0627\u062a \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u062e\u0627\u0646\u0647 \u0641\u0639\u0644\u06cc \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0641\u0627\u06cc\u0644 \u0647\u0627 \u0648 \u067e\u0648\u0634\u0647 \u0647\u0627\u060c \u0631\u0648\u06cc \u0635\u0641\u062d\u0647 \u0646\u0645\u0627\u06cc\u0634 \u067e\u0648\u0633\u062a\u0647 \u0645\u0627<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176843 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"464\" height=\"212\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881813_421_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 464w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-05-300x137.png 300w\" data-lazy-sizes=\"(max-width: 464px) 100vw, 464px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881813_421_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176843 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881813_421_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"464\" height=\"212\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881813_421_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 464w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-05-300x137.png 300w\" sizes=\"(max-width: 464px) 100vw, 464px\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84_02\"><\/span>\u0645\u062b\u0627\u0644 02<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u06cc\u06a9\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0632 \u062f\u0644\u0627\u06cc\u0644 \u0628\u0631\u0648\u0632 \u062e\u0637\u0627\u0647\u0627\u06cc \u062a\u0639\u0648\u06cc\u0636 \u0628\u062f \u062f\u0631 bash \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0641\u0636\u0627\u0647\u0627\u06cc \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u0647\u0646\u06af\u0627\u0645 \u0627\u062c\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0627\u0633\u062a.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0645\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 bash \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 &#8220;V&#8221; \u0631\u0627 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0644\u06cc\u0633\u062a \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631\u06cc \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0633\u0627\u062f\u0647 \u0648 \u06cc\u06a9 \u0639\u0644\u0627\u0645\u062a \u062f\u0644\u0627\u0631\u06cc &#8220;$&#8221; \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0645\u06cc \u0634\u0648\u062f\u060c \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0648 \u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0631\u062f.  \u067e\u0633 \u0627\u0632 \u0627\u06cc\u0646\u060c \u0645\u0627 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 \u201cecho\u201d \u0628\u0631\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 \u201cv\u201d \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u0645\u0627 \u0645\u062a\u063a\u06cc\u0631 &#8220;V&#8221; \u0631\u0627 \u062f\u0631 \u0639\u0628\u0627\u0631\u062a &#8220;echo&#8221; \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 &#8220;space&#8221; \u062f\u0631 \u067e\u0631\u0627\u0646\u062a\u0632 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176844 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"376\" height=\"66\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_202_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 376w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-06-300x53.png 300w\" data-lazy-sizes=\"(max-width: 376px) 100vw, 376px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_202_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176844 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_202_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"376\" height=\"66\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_202_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 376w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-06-300x53.png 300w\" sizes=\"(max-width: 376px) 100vw, 376px\" title=\"\"><\/p>\n<p>\u067e\u0633 \u0627\u0632 \u0630\u062e\u06cc\u0631\u0647 \u0627\u06cc\u0646 \u06a9\u062f\u060c \u0627\u06cc\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 bash \u0641\u0627\u06cc\u0644 \u0628\u0627 &#8220;bash\u201d \u067e\u0631\u0633 \u0648 \u062c\u0648 \u062f\u0631 \u0645\u0627 terminal\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0632\u06cc\u0631 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f bash \u062a\u0639\u0648\u06cc\u0636 \u062f\u0631 3<sup>rd<\/sup> \u062e\u0637 \u0641\u06cc\u0644\u0645\u0646\u0627\u0645\u0647<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176845 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"356\" height=\"36\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_748_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 356w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-07-300x30.png 300w\" data-lazy-sizes=\"(max-width: 356px) 100vw, 356px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_748_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176845 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_748_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"356\" height=\"36\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881814_748_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 356w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-07-300x30.png 300w\" sizes=\"(max-width: 356px) 100vw, 356px\" title=\"\"><\/p>\n<p>\u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u062e\u0637\u0627 \u0627\u0632 \u06a9\u062f \u062e\u0648\u062f\u060c \u0628\u0627\u06cc\u062f \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0647 \u0631\u0648\u0632 \u06a9\u0646\u06cc\u0645.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0645\u0627 \u0641\u0627\u06cc\u0644 \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0627\u0632 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u0648 \u0641\u0636\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u062f\u0631\u0648\u0646 \u0628\u0631\u0627\u06a9\u062a\u200c\u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0639\u0628\u0627\u0631\u062a \u00abecho\u00bb \u0631\u0627 \u0645\u0627\u0646\u0646\u062f \u0632\u06cc\u0631 \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176846 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"426\" height=\"68\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881815_355_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 426w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-08-300x48.png 300w\" data-lazy-sizes=\"(max-width: 426px) 100vw, 426px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881815_355_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176846 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881815_355_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"426\" height=\"68\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881815_355_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 426w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-08-300x48.png 300w\" sizes=\"(max-width: 426px) 100vw, 426px\" title=\"\"><\/p>\n<p>\u062d\u0627\u0644\u0627 \u06a9\u0647 \u06a9\u062f \u0628\u0647 \u0631\u0648\u0632 \u0634\u062f \u0648 \u0641\u0636\u0627\u06cc \u062e\u0627\u0644\u06cc \u062d\u0630\u0641 \u0634\u062f\u060c \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0628\u0627 \u06a9\u062f \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u0645 bash \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0632\u06cc\u0631  \u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u0641\u0627\u06cc\u0644\u060c \u062e\u0637\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f \u062d\u0630\u0641 \u0634\u062f\u0647 \u0648 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0644\u06cc\u0633\u062a \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u062f\u0631 \u0645\u062a\u063a\u06cc\u0631 &#8220;V&#8221; \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0627\u062c\u0631\u0627 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0631\u0648\u06cc \u0631\u0627 terminal \u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631 &#8220;echo&#8221; \u062f\u0631 bash \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a  \u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u0641\u0627\u06cc\u0644 \u0647\u0627 \u0648 \u067e\u0648\u0634\u0647 \u0647\u0627\u06cc \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u062e\u0627\u0646\u06af\u06cc \u0641\u0639\u0644\u06cc \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \u0631\u0648\u06cc \u0635\u0641\u062d\u0647 \u067e\u0648\u0633\u062a\u0647 \u0645\u0627 \u062f\u0631 \u0632\u06cc\u0631.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176847 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"460\" height=\"164\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881816_865_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 460w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-09-300x107.png 300w\" data-lazy-sizes=\"(max-width: 460px) 100vw, 460px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881816_865_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176847 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881816_865_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"460\" height=\"164\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881816_865_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 460w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-09-300x107.png 300w\" sizes=\"(max-width: 460px) 100vw, 460px\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84_03\"><\/span>\u0645\u062b\u0627\u0644 03<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 \u062e\u0637\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631\u0647\u0627\u06cc \u0646\u0627\u062e\u0648\u0627\u0633\u062a\u0647 \u0645\u06a9\u0631\u0631 \u062f\u0631 \u06a9\u062f \u0631\u062e \u062f\u0647\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0645\u0627 \u06cc\u06a9 \u06a9\u062f \u0628\u0647 \u0631\u0648\u0632 \u0634\u062f\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0627\u06cc\u0646 \u062e\u0637\u0627 \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 \u0631\u0648\u06cc \u067e\u0648\u0633\u062a\u0647.  \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0628\u0627\u06cc\u062f \u0627\u0632 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u00ab$\u00bb \u062f\u0648 \u0628\u0627\u0631 \u062f\u0631 \u0639\u0628\u0627\u0631\u062a \u00abecho\u00bb \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u0645\u062a\u063a\u06cc\u0631 \u00abV\u00bb \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627 \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0646\u062d\u0648 \u0627\u0634\u062a\u0628\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0645\u062a\u063a\u06cc\u0631 &#8220;v&#8221; \u062d\u0627\u0648\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0644\u06cc\u0633\u062a \u0633\u0627\u062f\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 \u0622\u0646 \u0627\u0633\u062a.  \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0627 \u0627\u0632 \u0639\u0644\u0627\u0645\u062a \u062f\u0648\u06af\u0627\u0646\u0647 \u00ab$\u00bb \u0628\u0631\u0627\u06cc \u0648\u0631\u0648\u062f \u0648 \u062e\u0631\u0648\u062c \u0627\u0632 \u0628\u0631\u0627\u06a9\u062a\u200c\u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u062f\u0631 \u0639\u0628\u0627\u0631\u062a \u00abecho\u00bb \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645\u060c \u0645\u0627 \u0631\u0627 \u0628\u0647 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f \u0633\u0648\u0642 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0631\u0648\u06cc \u0627\u062c\u0631\u0627.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176848 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"366\" height=\"64\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881817_285_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 366w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-10-300x52.png 300w\" data-lazy-sizes=\"(max-width: 366px) 100vw, 366px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881817_285_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176848 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881817_285_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"366\" height=\"64\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881817_285_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 366w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-10-300x52.png 300w\" sizes=\"(max-width: 366px) 100vw, 366px\" title=\"\"><\/p>\n<p>\u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u0628\u0627 bash \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644\u060c \u0645\u0627 \u0628\u0627 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u062a\u0639\u0648\u06cc\u0636 \u0628\u062f \u062f\u0631 \u062e\u0637 3 \u0645\u0648\u0627\u062c\u0647 \u0634\u062f\u06cc\u0645 bash \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0648\u06cc \u0635\u0641\u062d\u0647 \u0646\u0645\u0627\u06cc\u0634 \u067e\u0648\u0633\u062a\u0647 \u0645\u0627<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176849 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"308\" height=\"32\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881818_311_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 308w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-11-300x31.png 300w\" data-lazy-sizes=\"(max-width: 308px) 100vw, 308px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881818_311_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176849 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881818_311_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"308\" height=\"32\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881818_311_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 308w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-11-300x31.png 300w\" sizes=\"(max-width: 308px) 100vw, 308px\" title=\"\"><\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0627 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u062e\u0637 3 \u06cc\u06a9 \u06a9\u062f\u060c \u062e\u0637\u0627\u06cc \u0628\u062f \u062a\u0639\u0648\u06cc\u0636 \u0631\u0627 \u0627\u0632 \u0627\u062c\u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u0645.  \u0645\u0627 \u0639\u0644\u0627\u0645\u062a \u062f\u0627\u062e\u0644\u06cc &#8220;$&#8221; \u0631\u0627 \u062f\u0631 \u062f\u0627\u062e\u0644 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0627\u0632 \u0639\u0628\u0627\u0631\u062a &#8220;echo&#8221; \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176850 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"376\" height=\"64\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881819_652_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 376w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-12-300x51.png 300w\" data-lazy-sizes=\"(max-width: 376px) 100vw, 376px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881819_652_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176850 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881819_652_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"376\" height=\"64\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881819_652_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 376w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-12-300x51.png 300w\" sizes=\"(max-width: 376px) 100vw, 376px\" title=\"\"><\/p>\n<p>\u067e\u0633 \u0627\u0632 \u062d\u0630\u0641 \u0639\u0644\u0627\u0645\u062a $\u060c \u062f\u0648\u0628\u0627\u0631\u0647 \u06a9\u062f \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0631\u062f\u06cc\u0645 \u0631\u0648\u06cc \u067e\u0648\u0633\u062a\u0647 \u0628\u0627 &#8220;bash\u201d \u0641\u0631\u0645\u0627\u0646  \u062e\u0637\u0627 \u062d\u0630\u0641 \u0634\u062f \u0648 \u0644\u06cc\u0633\u062a \u0641\u0627\u06cc\u0644 \u0647\u0627 \u0648 \u067e\u0648\u0634\u0647 \u0647\u0627 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0634\u062f.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176851 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"542\" height=\"144\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_910_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 542w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-13-300x80.png 300w\" data-lazy-sizes=\"(max-width: 542px) 100vw, 542px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_910_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176851 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_910_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"542\" height=\"144\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_910_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 542w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-13-300x80.png 300w\" sizes=\"(max-width: 542px) 100vw, 542px\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84_04\"><\/span>\u0645\u062b\u0627\u0644 04<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0622\u062e\u0631\u06cc\u0646 \u0627\u0645\u0627 \u0646\u0647 \u06a9\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u062b\u0627\u0644 \u062e\u0648\u062f \u0631\u0627 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645.  \u0645\u0627 \u0627\u0632 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 x \u0648 y \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u0645\u062d\u0644 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u0631\u0627 \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631\u0634\u0627\u0646 \u062f\u0631 \u0628\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f.  \u062f\u0631 \u0639\u0628\u0627\u0631\u062a \u201cecho\u201d \u0627\u06cc\u0646 \u06a9\u062f\u060c \u0645\u0627 \u0627\u0632 \u0647\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u0628\u0631\u0627\u06cc \u0686\u0627\u067e \u0648 \u062c\u062f\u0627\u0633\u0627\u0632\u06cc \u0628\u0627 \u0639\u0644\u0627\u0645\u062a \u201c\/\u201d \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645.  \u0647\u0631 \u0645\u062a\u063a\u06cc\u0631 \u062d\u0627\u0648\u06cc \u06cc\u06a9 \u0639\u0644\u0627\u0645\u062a \u062f\u0644\u0627\u0631 \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062e\u0648\u062f \u0627\u0633\u062a\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u06cc\u06a9 \u0639\u0644\u0627\u0645\u062a \u062f\u0644\u0627\u0631 \u0648\u0627\u062d\u062f \u0646\u06cc\u0632 \u062f\u0631 \u062e\u0627\u0631\u062c \u0627\u0632 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176852 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"408\" height=\"92\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_53_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 408w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-14-300x68.png 300w\" data-lazy-sizes=\"(max-width: 408px) 100vw, 408px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_53_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176852 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_53_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"408\" height=\"92\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881821_53_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 408w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-14-300x68.png 300w\" sizes=\"(max-width: 408px) 100vw, 408px\" title=\"\"><\/p>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0648 \u0639\u0644\u0627\u0645\u062a \u062f\u0644\u0627\u0631 \u0628\u0627\u0639\u062b \u062e\u0637\u0627\u06cc \u0628\u062f \u062a\u0639\u0648\u06cc\u0636 \u0634\u062f.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176853 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"386\" height=\"40\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881822_85_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 386w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-300x31.png 300w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-375x40.png 375w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-380x40.png 380w\" data-lazy-sizes=\"(max-width: 386px) 100vw, 386px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881822_85_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176853 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881822_85_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"386\" height=\"40\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881822_85_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 386w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-300x31.png 300w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-375x40.png 375w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-15-380x40.png 380w\" sizes=\"(max-width: 386px) 100vw, 386px\" title=\"\"><\/p>\n<p>\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0628\u0631\u0627\u06a9\u062a \u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc \u0648 \u0639\u0644\u0627\u0645\u062a \u062f\u0644\u0627\u0631 \u062e\u0627\u0631\u062c\u06cc \u0631\u0627 \u0645\u0627\u0646\u0646\u062f \u062a\u0635\u0648\u06cc\u0631 \u0632\u06cc\u0631 \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176854 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"400\" height=\"88\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_538_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-16-300x66.png 300w\" data-lazy-sizes=\"(max-width: 400px) 100vw, 400px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_538_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176854 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_538_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"400\" height=\"88\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_538_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 400w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-16-300x66.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" title=\"\"><\/p>\n<p>\u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0632\u0645\u0627\u0646\u06cc \u0647\u0631 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<div class=\"codecolorer-container text blackboard\" style=\"width:100%;\">\n<div class=\"text codecolorer\">$ bash sub.sh<\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-176855 size-full\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"308\" height=\"36\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_669_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 308w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-17-300x35.png 300w\" data-lazy-sizes=\"(max-width: 308px) 100vw, 308px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_669_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter wp-image-176855 size-full\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_669_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png\" alt=\"\" width=\"308\" height=\"36\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1703881823_669_\u062d\u0644-\u0645\u0634\u06a9\u0644-\u062a\u0639\u0648\u06cc\u0636-\u0628\u062f-Bash.png 308w, https:\/\/linuxhint.com\/wp-content\/uploads\/2022\/05\/Resolve-Issue-bash-bad-substitution-17-300x35.png 300w\" sizes=\"(max-width: 308px) 100vw, 308px\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 \u0647\u0645\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u062a\u0635\u0648\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0627\u0633\u062a bash \u0628\u0647 \u0627\u0634\u062a\u0628\u0627\u0647\u0627\u062a\u06cc \u06a9\u0647 \u0628\u0627\u0639\u062b \u0628\u0631\u0648\u0632 \u062e\u0637\u0627\u06cc \u0628\u062f \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u062f\u0631 \u062d\u06cc\u0646 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f \u06a9\u062f \u0645\u06cc \u0646\u0648\u06cc\u0633\u062f.  \u0645\u0627 \u0628\u0627\u06cc\u062f\u0647\u0627 \u0648 \u0646\u0628\u0627\u06cc\u062f\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062e\u0637\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u062c\u0631\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a \u0645\u0648\u0631\u062f \u0628\u062d\u062b \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0647 \u0627\u06cc\u0645 bash \u0645\u062b\u0627\u0644 \u0647\u0627.\n<\/p>\n<\/div>\n\n<div>\u0628\u0631\u0627\u06cc \u0646\u06af\u0627\u0631\u0634 \u0628\u062e\u0634\u0647\u0627\u06cc\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u0645\u062a\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u0632 \u062a\u0631\u062c\u0645\u0647 \u0645\u0627\u0634\u06cc\u0646\u06cc \u06cc\u0627 \u0647\u0648\u0634 \u0645\u0635\u0646\u0648\u0639\u06cc GPT \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f <br \/>\n\u0644\u0637\u0641\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u0648\u062c\u0648\u062f \u0645\u0634\u06a9\u0644 \u062f\u0631 \u0645\u062a\u0646 \u06cc\u0627 \u0645\u0641\u0647\u0648\u0645 \u0646\u0628\u0648\u062f\u0646 \u062a\u0648\u0636\u06cc\u062d\u0627\u062a\u060c \u0627\u0632 \u0637\u0631\u06cc\u0642 \u062f\u06a9\u0645\u0647 \u06af\u0632\u0627\u0631\u0634 \u0646\u0648\u0634\u062a\u0627\u0631 \u06cc\u0627 \u062f\u0631\u062c \u0646\u0638\u0631 \u0631\u0648\u06cc \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u0645\u0627 \u0631\u0627 \u0627\u0632 \u062c\u0632\u06cc\u06cc\u0627\u062a \u0645\u0634\u06a9\u0644 \u0645\u0634\u0627\u0647\u062f\u0647 \u0634\u062f\u0647 \u0645\u0637\u0644\u0639 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0628\u0647 \u0622\u0646 \u0631\u0633\u06cc\u062f\u06af\u06cc \u06a9\u0646\u06cc\u0645\n<\/div>\n<p>\u0632\u0645\u0627\u0646 \u0627\u0646\u062a\u0634\u0627\u0631: 1402-12-30 00:00:04<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;11563&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u062d\u0644 \u0645\u0634\u06a9\u0644: \u062a\u0639\u0648\u06cc\u0636 \u0628\u062f Bash&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0647\u0646\u06af\u0627\u0645 \u062a\u0648\u0633\u0639\u0647 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0647\u0627\u06cc Bash \u0645\u0634\u06a9\u0644 \u0646\u062d\u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u062f \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0631\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f. \u067e\u0633 \u0627\u0632 \u0645\u0631\u0648\u0631 \u062f\u0631 \u0627\u0646\u062c\u0645\u0646 \u0647\u0627\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0648\u062c\u0647 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0646\u0647\u0627 \u0646\u06cc\u0633\u062a\u06cc\u062f. \u0627\u0641\u0631\u0627\u062f \u062f\u06cc\u06af\u0631 \u0628\u0627 \u0647\u0645\u06cc\u0646 \u0627\u0634\u062a\u0628\u0627\u0647 \u0631\u0648\u0628\u0631\u0648 \u0645\u06cc \u0634\u0648\u0646\u062f. \u0627\u06cc\u0646 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u0686\u0627\u067e\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0627\u062c\u0631\u0627\u06cc \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a Shell \u0631\u062e \u0645\u06cc \u062f\u0647\u062f \u0648 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644 \u0645\u062e\u062a\u0644\u0641\u06cc [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11564,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2740,1062],"tags":[2744,1061,2745,2742],"class_list":["post-11563","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bash-programming","category-bash-script","tag-bash-script","tag--bash-scripting","tag-2745","tag--bash"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/11563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=11563"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/11563\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/11564"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=11563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=11563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=11563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}