{"id":12860,"date":"2023-12-31T17:28:18","date_gmt":"2023-12-31T13:58:18","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/"},"modified":"2023-12-31T17:28:18","modified_gmt":"2023-12-31T13:58:18","slug":"%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/","title":{"rendered":"\u062f\u0633\u062a\u0648\u0631 Bash eval"},"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%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%86%d8%ad%d9%88\" >\u0646\u062d\u0648:<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%85%d8%ab%d8%a7%d9%84-1_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%9cwc%e2%80%9d_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%e2%80%9ceval%e2%80%9d_%d8%a7%d8%ac%d8%b1%d8%a7_%da%a9%d9%86%db%8c%d8%af\" >\u0645\u062b\u0627\u0644-1: \u062f\u0633\u062a\u0648\u0631 &#8220;wc&#8221; \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 &#8220;eval&#8221; \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%85%d8%ab%d8%a7%d9%84-2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%c2%abexpr%c2%bb_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%c2%abeval%c2%bb_%d8%a7%d8%ac%d8%b1%d8%a7_%da%a9%d9%86%db%8c%d8%af\" >\u0645\u062b\u0627\u0644-2: \u062f\u0633\u062a\u0648\u0631 \u00abexpr\u00bb \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u00abeval\u00bb \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%85%d8%ab%d8%a7%d9%84-3_%d9%85%d9%82%d8%af%d8%a7%d8%b1_%d9%85%d8%aa%d8%ba%db%8c%d8%b1%db%8c_%d8%b1%d8%a7_%da%a9%d9%87_%d8%a8%d9%87_%d9%85%d8%aa%d8%ba%db%8c%d8%b1_%d8%af%db%8c%da%af%d8%b1%db%8c_%d8%a7%d8%ae%d8%aa%d8%b5%d8%a7%d8%b5_%d8%af%d8%a7%d8%af%d9%87_%d8%b4%d8%af%d9%87_%d8%a7%d8%b3%d8%aa_%da%86%d8%a7%d9%be_%da%a9%d9%86%db%8c%d8%af\" >\u0645\u062b\u0627\u0644-3: \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u0631\u0627 \u06a9\u0647 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a \u0686\u0627\u067e \u06a9\u0646\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%85%d8%ab%d8%a7%d9%84-4_%db%8c%da%a9_%d8%b3%d8%b1%db%8c_%d9%85%d8%aa%d8%ba%db%8c%d8%b1_%d8%a8%d8%a7_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d8%a7%db%8c%d8%ac%d8%a7%d8%af_%da%a9%d9%86%db%8c%d8%af_%d9%88_%d9%85%d8%ac%d9%85%d9%88%d8%b9_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%98eval_%d9%85%d8%ad%d8%a7%d8%b3%d8%a8%d9%87_%da%a9%d9%86%db%8c%d8%af\" >\u0645\u062b\u0627\u0644-4: \u06cc\u06a9 \u0633\u0631\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u0648 \u0645\u062c\u0645\u0648\u0639 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%85%d8%ab%d8%a7%d9%84-5_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%98eval_%d8%a8%d8%b1%d8%a7%db%8c_%d8%ad%d8%b0%d9%81_%d9%84%db%8c%d8%b3%d8%aa_%d9%81%d8%a7%db%8c%d9%84_%d9%87%d8%a7\" >\u0645\u062b\u0627\u0644-5: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0644\u06cc\u0633\u062a \u0641\u0627\u06cc\u0644 \u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%af%d8%b3%d8%aa%d9%88%d8%b1-bash-eval\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/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\">\n<p>\u062f\u0633\u062a\u0648\u0631 &#8220;eval&#8221; \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f bash \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u0645\u0627\u0646\u0646\u062f \u062f\u0633\u062a\u0648\u0631 shell.  \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u062f\u0631 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0628\u0647 \u0647\u0645 \u0645\u062a\u0635\u0644 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0648\u0631\u0648\u062f\u06cc \u062f\u0633\u062a\u0648\u0631 shell \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f.  &#8220;eval&#8221; \u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u062f\u0631 \u067e\u0648\u0633\u062a\u0647 \u0641\u0639\u0644\u06cc \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0632\u0645\u0627\u0646\u06cc \u0645\u0641\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u0647\u0631 \u062f\u0633\u062a\u0648\u0631\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 \u06cc\u06a9 \u0639\u0645\u0644\u06af\u0631 \u062e\u0627\u0635 \u06cc\u0627 \u06a9\u0644\u0645\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc \u0631\u0632\u0631\u0648 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f.  \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u062f\u0631 \u0647\u0631 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u06cc \u06a9\u0647 \u0646\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631 \u062a\u0627 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0646\u0627\u0634\u0646\u0627\u062e\u062a\u0647 \u0627\u0633\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f.  \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u06cc\u0627\u062f \u0628\u06af\u06cc\u0631\u0646\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%d9%86%d8%ad%d9%88\"><\/span><strong>\u0646\u062d\u0648:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"br0\">[<\/span>argument &#8230;<span class=\"br0\">]<\/span><\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0634\u062f\u0647 \u0648 \u062f\u0631 \u0631\u0634\u062a\u0647 \u0627\u06cc \u062a\u0631\u06a9\u06cc\u0628 \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u0647 \u062a\u0648\u0633\u0637 \u067e\u0648\u0633\u062a\u0647 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f.  \u00abeval\u00bb \u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631\u060c \u06cc\u06a9 \u06a9\u062f \u0648\u0636\u0639\u06cc\u062a \u062e\u0631\u0648\u062c \u0631\u0627 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f.  \u0627\u06af\u0631 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0627\u0631\u0627\u0626\u0647 \u0646\u0634\u0648\u062f \u06cc\u0627 \u0641\u0642\u0637 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u062a\u0647\u06cc \u0627\u0631\u0627\u0626\u0647 \u0634\u0648\u062f\u060c `eval` 0 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u062f \u0648\u0636\u0639\u06cc\u062a \u062e\u0631\u0648\u062c \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84-1_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%9cwc%e2%80%9d_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%e2%80%9ceval%e2%80%9d_%d8%a7%d8%ac%d8%b1%d8%a7_%da%a9%d9%86%db%8c%d8%af\"><\/span><strong>\u0645\u062b\u0627\u0644-1: \u062f\u0633\u062a\u0648\u0631 &#8220;wc&#8221; \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 &#8220;eval&#8221; \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u06cc\u06a9 \u0641\u0627\u06cc\u0644 \u0645\u062a\u0646\u06cc \u0628\u0647 \u0646\u0627\u0645 \u00ab<strong>Department.txt<\/strong>\u201d \u062d\u0627\u0648\u06cc \u0645\u062a\u0646 \u0632\u06cc\u0631 \u0627\u0633\u062a.  \u062a\u0639\u062f\u0627\u062f \u06a9\u0644 \u062e\u0637\u0648\u0637 \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 &#8216;wc&#8217; \u0634\u0645\u0627\u0631\u0634 \u06a9\u0631\u062f.<\/p>\n<p><strong>Department.txt<\/strong><\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\">CSE<br \/>\nEEE<br \/>\nETE<br \/>\n\u0627\u0646\u06af\u0644\u06cc\u0633\u06cc<br \/>\nBBA<br \/>\n\u062f\u0627\u0631\u0648\u062e\u0627\u0646\u0647<\/div>\n<\/div>\n<p>\u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u062f\u0633\u062a\u0648\u0631 wc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627\u0631\u0634 \u06a9\u0644 \u062e\u0637\u0648\u0637 \u0641\u0627\u06cc\u0644 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f. <strong>Department.txt <\/strong>\u0628\u0647 \u0645\u062a\u063a\u06cc\u0631\u060c <strong>$mycommand<\/strong>.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"re2\">\u062f\u0633\u062a\u0648\u0631 \u0645\u0646<\/span>=<span class=\"st0\">&#8220;wc -l Department.txt&#8221;<\/span><\/div>\n<\/div>\n<p>\u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0632\u06cc\u0631 \u062f\u0633\u062a\u0648\u0631 &#8216;wc&#8217; \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f \u0648 print \u062a\u0639\u062f\u0627\u062f \u06a9\u0644 \u062e\u0637\u0648\u0637<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">$mycommand<\/span><\/div>\n<\/div>\n<p><strong>\u062e\u0631\u0648\u062c\u06cc:<\/strong><\/p>\n<p>\u062e\u0631\u0648\u062c\u06cc \u0627\u06cc\u0646 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f <strong>Department.txt<\/strong> \u0641\u0627\u06cc\u0644 \u062f\u0627\u0631\u0627\u06cc 6 \u062e\u0637 \u0627\u0633\u062a.<\/p>\n<p><img decoding=\"async\" fetchpriority=\"high\" class=\"aligncenter size-full wp-image-44384\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" alt=\"\" width=\"730\" height=\"81\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 730w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/1-7-300x33.jpg 300w\" sizes=\"(max-width: 730px) 100vw, 730px\" title=\"\"><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84-2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%c2%abexpr%c2%bb_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%c2%abeval%c2%bb_%d8%a7%d8%ac%d8%b1%d8%a7_%da%a9%d9%86%db%8c%d8%af\"><\/span><strong>\u0645\u062b\u0627\u0644-2: \u062f\u0633\u062a\u0648\u0631 \u00abexpr\u00bb \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u00abeval\u00bb \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 bash \u0641\u0627\u06cc\u0644 \u0628\u0647 \u0646\u0627\u0645 <strong>evaltest.sh<\/strong> \u0648 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f.  \u0627\u06cc\u0646 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062f\u0648 \u0645\u0642\u062f\u0627\u0631 \u0635\u062d\u06cc\u062d \u0631\u0627 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 $x \u0648 $y \u0627\u062e\u062a\u0635\u0627\u0635 \u0645\u06cc \u062f\u0647\u062f.  \u00abexpr\u00bb \u0648 \u00abecho\u062f\u0633\u062a\u0648\u0631\u0627\u062a \u0628\u0647 \u062f\u0648 \u0645\u062a\u063a\u06cc\u0631 $c1 \u0648 $c2 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u0647 \u0628\u0639\u062f\u0627\u064b \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8220;eval&#8221; \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<p><strong>evaltest.sh<\/strong><\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:780px;\">\n<div class=\"bash codecolorer\"><span class=\"co0\">#!\/\u0635\u0646\u062f\u0648\u0642\u0686\u0647\/bash<\/span><br \/>\n<span class=\"co0\">#\u0645\u062a\u063a\u06cc\u0631 x \u0648 y \u0631\u0627 \u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">\u0627\u06cc\u06a9\u0633<\/span>=<span class=\"nu0\">5<\/span><br \/>\n<span class=\"re2\">y<\/span>=<span class=\"nu0\">15<\/span><\/p>\n<p><span class=\"co0\">#\u0645\u062a\u063a\u06cc\u0631 \u0641\u0631\u0645\u0627\u0646 \u0627\u0648\u0644 \u0628\u0631\u0627\u06cc \u062a\u062e\u0635\u06cc\u0635 \u062f\u0633\u062a\u0648\u0631 &#8216;expr&#8217; \u0628\u0631\u0627\u06cc \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 x$ \u0648 $y \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f<\/span><br \/>\n<span class=\"re2\">c1<\/span>=<span class=\"st0\">&#8220;<span class=\"es5\">&#8220;expr $x + $y&#8221;.<\/span>&#8220;<\/span><\/p>\n<p><span class=\"co0\">#\u0645\u062a\u063a\u06cc\u0631 \u0641\u0631\u0645\u0627\u0646 \u062f\u0648\u0645 \u0628\u0631\u0627\u06cc \u062a\u062e\u0635\u06cc\u0635 ` \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062fecho\u062f\u0633\u062a\u0648\u0631<\/span><br \/>\n<span class=\"re2\">c2<\/span>=<span class=\"st0\">&#8220;echo&#8221;<\/span><\/p>\n<p><span class=\"co0\">#&#8217;eval&#8217; \u0645\u062d\u0627\u0633\u0628\u0647 \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f \u0648 print \u0645\u062c\u0645\u0648\u0639 $x \u0648 $y \u0628\u0627 \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u062a c1 $<\/span><\/p>\n<p>\u0648 <span class=\"re1\">c2 \u062f\u0644\u0627\u0631<\/span> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627<br \/>\n<span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">c2 \u062f\u0644\u0627\u0631<\/span> <span class=\"re1\">$c1<\/span><\/div>\n<\/div>\n<p>\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"kw2\">bash<\/span>  evaltest.sh<\/div>\n<\/div>\n<p>\u0645\u062c\u0645\u0648\u0639 5 \u0648 15 \u0628\u0631\u0627\u0628\u0631 20 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u062e\u0631\u0648\u062c\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-44385\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"733\" height=\"63\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_173_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 733w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/2-5-300x26.jpg 300w\" data-lazy-sizes=\"(max-width: 733px) 100vw, 733px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_173_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-44385\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_173_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" alt=\"\" width=\"733\" height=\"63\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_173_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 733w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/2-5-300x26.jpg 300w\" sizes=\"(max-width: 733px) 100vw, 733px\" title=\"\"><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84-3_%d9%85%d9%82%d8%af%d8%a7%d8%b1_%d9%85%d8%aa%d8%ba%db%8c%d8%b1%db%8c_%d8%b1%d8%a7_%da%a9%d9%87_%d8%a8%d9%87_%d9%85%d8%aa%d8%ba%db%8c%d8%b1_%d8%af%db%8c%da%af%d8%b1%db%8c_%d8%a7%d8%ae%d8%aa%d8%b5%d8%a7%d8%b5_%d8%af%d8%a7%d8%af%d9%87_%d8%b4%d8%af%d9%87_%d8%a7%d8%b3%d8%aa_%da%86%d8%a7%d9%be_%da%a9%d9%86%db%8c%d8%af\"><\/span><strong>\u0645\u062b\u0627\u0644-3: \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u0631\u0627 \u06a9\u0647 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a \u0686\u0627\u067e \u06a9\u0646\u06cc\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 bash \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0647 \u0646\u0627\u0645 evaltest2.sh \u0628\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0632\u06cc\u0631.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0627\u0632 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0628\u0631\u0627\u06cc \u062a\u062e\u0635\u06cc\u0635 \u0646\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631\u06cc \u06a9\u0647 \u062d\u0627\u0648\u06cc \u062f\u0627\u062f\u0647 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u062e\u0648\u0627\u0647\u062f \u0634\u062f print \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u06a9\u0647 \u062d\u0627\u0648\u06cc \u0646\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062d\u062a\u0648\u0627 \u0627\u0633\u062a.<\/p>\n<p><strong>evaltest2.sh<\/strong><\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:780px;\">\n<div class=\"bash codecolorer\"><span class=\"co0\">#!\/\u0635\u0646\u062f\u0648\u0642\u0686\u0647\/bash<\/span><\/p>\n<p><span class=\"co0\"># \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0631\u0634\u062a\u0647 \u0631\u0627 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 $str1 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">str1<\/span>=<span class=\"st0\">&#8220;\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u0633\u062a\u0647&#8221;<\/span><\/p>\n<p><span class=\"co0\"># \u0646\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631 &#8220;str1&#8221; \u0631\u0627 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 $str2 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">str2<\/span>=str1<br \/>\n<span class=\"co0\">\u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u062f\u0631 \u0645\u062a\u063a\u06cc\u0631 $command \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">\u0641\u0631\u0645\u0627\u0646<\/span>=<span class=\"st0\">&#8220;echo&#8221;<\/span><\/p>\n<p><span class=\"co0\">\u062f\u0633\u062a\u0648\u0631 # &#8216;eval&#8217; \u062f\u0633\u062a\u0648\u0631 &#8216; \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062fecho\u062f\u0633\u062a\u0648\u0631 \u0648 print \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 <\/span><\/p>\n<p>\u06a9\u0647 \u0634\u0627\u0645\u0644 <span class=\"kw1\">\u06a9\u0647 \u062f\u0631<\/span> \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631<br \/>\n<span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">\u062f\u0633\u062a\u0648\u0631 $<\/span> \\<span class=\"co1\">${$str2}<\/span><\/div>\n<\/div>\n<p>\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"kw2\">bash<\/span>  evaltest2.sh<\/div>\n<\/div>\n<p>\u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 $str1 \u0686\u0627\u067e \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-44386\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"728\" height=\"59\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_455_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 728w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/3-7-300x24.jpg 300w\" data-lazy-sizes=\"(max-width: 728px) 100vw, 728px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_455_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-44386\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_455_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" alt=\"\" width=\"728\" height=\"59\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_455_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 728w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/3-7-300x24.jpg 300w\" sizes=\"(max-width: 728px) 100vw, 728px\" title=\"\"><\/p>\n<p>\u0631\u0627\u0647 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0646\u0627\u0645 \u0622\u0646 \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0627\u0633\u062a.  \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 &#8216;!&#8217;  \u0646\u0645\u0627\u062f \u0645\u0642\u062f\u0627\u0631 \u0627\u06cc\u0646 \u0646\u0648\u0639 \u0645\u062a\u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u062f\u0633\u062a\u0631\u0633\u06cc \u0627\u0633\u062a.  \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0642\u0628\u0644\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f \u0648 \u062e\u0631\u0648\u062c\u06cc \u06cc\u06a9\u0633\u0627\u0646 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:750px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"re2\">str1<\/span>=<span class=\"st0\">&#8220;\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u067e\u0648\u0633\u062a\u0647&#8221;<\/span>; <span class=\"re2\">str2<\/span>=str1; <span class=\"re2\">\u0641\u0631\u0645\u0627\u0646<\/span>=<span class=\"st0\">&#8220;echo&#8221;<\/span>; <span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">\u062f\u0633\u062a\u0648\u0631 $<\/span> <span class=\"co1\">${!str2}<\/span><\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84-4_%db%8c%da%a9_%d8%b3%d8%b1%db%8c_%d9%85%d8%aa%d8%ba%db%8c%d8%b1_%d8%a8%d8%a7_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d8%a7%db%8c%d8%ac%d8%a7%d8%af_%da%a9%d9%86%db%8c%d8%af_%d9%88_%d9%85%d8%ac%d9%85%d9%88%d8%b9_%d9%85%d9%82%d8%a7%d8%af%db%8c%d8%b1_%d8%b1%d8%a7_%d8%a8%d8%a7_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%98eval_%d9%85%d8%ad%d8%a7%d8%b3%d8%a8%d9%87_%da%a9%d9%86%db%8c%d8%af\"><\/span>\u0645\u062b\u0627\u0644-4: \u06cc\u06a9 \u0633\u0631\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u0648 \u0645\u062c\u0645\u0648\u0639 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 bash \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627 \u0646\u0627\u0645 evaltest3.sh \u0648 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0632\u06cc\u0631 \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f.  \u0627\u06cc\u0646 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u06cc\u06a9 \u0633\u0631\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u062f\u0631 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f.  \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u062f\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u0628\u0647 \u0646\u0627\u0645 $sum \u0627\u0636\u0627\u0641\u0647 \u0648 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0628\u0639\u062f\u060c `echo\u062f\u0633\u062a\u0648\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0634\u062a\u0647 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631\u06cc \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u062f\u0631 \u062f\u0633\u062a\u0648\u0631 eval \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f print \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 $sum.<\/p>\n<p><strong>evaltest3.sh<\/strong><\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:750px;\">\n<div class=\"bash codecolorer\"><span class=\"co0\">#!\/\u0635\u0646\u062f\u0648\u0642\u0686\u0647\/bash<\/span><\/p>\n<p><span class=\"co0\"># \u0645\u062a\u063a\u06cc\u0631 $sum \u0631\u0627 \u0628\u0627 \u0645\u0642\u062f\u0627\u0631 0 \u0645\u0642\u062f\u0627\u0631 \u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">\u0645\u062c\u0645\u0648\u0639<\/span>=<span class=\"nu0\">0<\/span><\/p>\n<p><span class=\"co0\"># \u06cc\u06a9 \u062d\u0644\u0642\u0647 for \u0627\u0639\u0644\u0627\u0645 \u06a9\u0646\u06cc\u062f \u06a9\u0647 4 \u0628\u0627\u0631 \u062a\u06a9\u0631\u0627\u0631 \u0645\u06cc \u0634\u0648\u062f<\/span><br \/>\n<span class=\"kw1\">\u0628\u0631\u0627\u06cc<\/span> n <span class=\"kw1\">\u06a9\u0647 \u062f\u0631<\/span> <span class=\"br0\">{<\/span><span class=\"nu0\">1<\/span>..<span class=\"nu0\">4<\/span><span class=\"br0\">}<\/span><br \/>\n<span class=\"kw1\">\u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u0646<\/span><br \/>\n<span class=\"co0\"># \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 eval \u0686\u0647\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> \u0627\u06cc\u06a9\u0633<span class=\"re1\">$n<\/span>=<span class=\"re1\">$n<\/span><\/p>\n<p><span class=\"co0\"># \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u062a\u063a\u06cc\u0631 \u0631\u0627 \u0628\u0627 $sum \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">\u0645\u062c\u0645\u0648\u0639<\/span>=$<span class=\"br0\">(<\/span><span class=\"br0\">(<\/span><span class=\"re1\">$ \u0645\u062c\u0645\u0648\u0639<\/span>+<span class=\"re1\">x $<\/span><span class=\"re1\">$n<\/span><span class=\"br0\">)<\/span><span class=\"br0\">)<\/span><br \/>\n<span class=\"kw1\">\u0627\u0646\u062c\u0627\u0645 \u0634\u062f\u0647<\/span><\/p>\n<p><span class=\"co0\"># \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062fecho\u062f\u0633\u062a\u0648\u0631 \u0628\u0627 \u0631\u0634\u062a\u0647 \u062f\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631<\/span><br \/>\n<span class=\"re2\">\u0641\u0631\u0645\u0627\u0646<\/span>=<span class=\"st0\">&#8220;echo &#8216;\u0646\u062a\u06cc\u062c\u0647 \u062c\u0645\u0639 ='&#8221;<\/span><\/p>\n<p><span class=\"co0\"># \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; print \u0645\u0642\u062f\u0627\u0631 \u062c\u0645\u0639 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627<\/span><br \/>\n<span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">\u062f\u0633\u062a\u0648\u0631 $<\/span> <span class=\"re1\">$ \u0645\u062c\u0645\u0648\u0639<\/span><\/div>\n<\/div>\n<p>\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:435px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"kw2\">bash<\/span>  evaltest3.sh<\/div>\n<\/div>\n<p>\u0645\u062c\u0645\u0648\u0639 \u0686\u0647\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631 1+2+3+4=10 \u0627\u0633\u062a \u06a9\u0647 \u0686\u0627\u067e \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-44387\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"733\" height=\"69\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_643_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 733w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/4-7-300x28.jpg 300w\" data-lazy-sizes=\"(max-width: 733px) 100vw, 733px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_643_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-44387\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_643_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" alt=\"\" width=\"733\" height=\"69\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031097_643_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 733w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/4-7-300x28.jpg 300w\" sizes=\"(max-width: 733px) 100vw, 733px\" title=\"\"><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84-5_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d8%a7%d8%b2_%d8%af%d8%b3%d8%aa%d9%88%d8%b1_%e2%80%98eval_%d8%a8%d8%b1%d8%a7%db%8c_%d8%ad%d8%b0%d9%81_%d9%84%db%8c%d8%b3%d8%aa_%d9%81%d8%a7%db%8c%d9%84_%d9%87%d8%a7\"><\/span>\u0645\u062b\u0627\u0644-5: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0644\u06cc\u0633\u062a \u0641\u0627\u06cc\u0644 \u0647\u0627<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 bash \u0641\u0627\u06cc\u0644\u06cc \u0628\u0627 \u0646\u0627\u0645 evaltest4.sh \u0628\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0632\u06cc\u0631.  \u0627\u06cc\u0646 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0633\u0647 \u062e\u0648\u0627\u0646\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f command-line \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0646\u0627\u0645 \u0641\u0627\u06cc\u0644 \u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062d\u0630\u0641 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0622\u0631\u0627\u06cc\u0647\u060c $fn \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f.  \u062f\u0633\u062a\u0648\u0631 &#8220;rm&#8221; \u062f\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 $command \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u062d\u0644\u0642\u0647 For \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0647\u0631 \u0646\u0627\u0645 \u0641\u0627\u06cc\u0644 \u0648 \u062d\u0630\u0641 \u0641\u0627\u06cc\u0644 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u062f\u0631 \u0635\u0648\u0631\u062a \u0648\u062c\u0648\u062f \u0641\u0627\u06cc\u0644 \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p><strong>evaltest4.sh<\/strong><\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:750px;height:420px;\">\n<div class=\"bash codecolorer\"><span class=\"co0\">#!\/\u0635\u0646\u062f\u0648\u0642\u0686\u0647\/bash<\/span><\/p>\n<p><span class=\"co0\">#\u0627\u0639\u0644\u0627\u0646 \u0622\u0631\u0627\u06cc\u0647<\/span><br \/>\n<span class=\"kw3\">\u0627\u0639\u0644\u0627\u0645<\/span> <span class=\"re5\">-\u0622<\/span> fn<\/p>\n<p><span class=\"co0\"># \u0633\u0647 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u062e\u0637 \u0641\u0631\u0645\u0627\u0646 \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f \u0648 \u062f\u0631 \u0633\u0647 \u0634\u0627\u062e\u0635 \u0622\u0631\u0627\u06cc\u0647 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f<\/span><\/p>\n<p>fn<span class=\"br0\">[<\/span><span class=\"nu0\">0<\/span><span class=\"br0\">]<\/span>=<span class=\"re4\">1 \u062f\u0644\u0627\u0631<\/span><\/p>\n<p>fn<span class=\"br0\">[<\/span><span class=\"nu0\">1<\/span><span class=\"br0\">]<\/span>=<span class=\"re4\">2 \u062f\u0644\u0627\u0631<\/span><\/p>\n<p>fn<span class=\"br0\">[<\/span><span class=\"nu0\">2<\/span><span class=\"br0\">]<\/span>=<span class=\"re4\">3 \u062f\u0644\u0627\u0631<\/span><\/p>\n<p><span class=\"co0\"># \u062f\u0633\u062a\u0648\u0631 \u062d\u0630\u0641 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"re2\">\u0641\u0631\u0645\u0627\u0646<\/span>=<span class=\"st0\">&#8220;rm&#8221;<\/span><\/p>\n<p><span class=\"co0\">\u062d\u0644\u0642\u0647 # for \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u0633\u0647 \u0639\u0646\u0635\u0631 \u0622\u0631\u0627\u06cc\u0647 \u0633\u0647 \u0628\u0627\u0631 \u062a\u06a9\u0631\u0627\u0631 \u0645\u06cc \u0634\u0648\u062f<\/span><br \/>\n<span class=\"kw1\">\u0628\u0631\u0627\u06cc<\/span> \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628 <span class=\"kw1\">\u06a9\u0647 \u062f\u0631<\/span> <span class=\"nu0\">0<\/span> <span class=\"nu0\">1<\/span> <span class=\"nu0\">2<\/span><br \/>\n<span class=\"kw1\">\u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u0646<\/span><br \/>\n<span class=\"co0\"># \u0648\u062c\u0648\u062f \u06cc\u0627 \u0639\u062f\u0645 \u0648\u062c\u0648\u062f \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"kw1\">\u0627\u06af\u0631<\/span> <span class=\"br0\">[<\/span><span class=\"br0\">[<\/span> <span class=\"re5\">-f<\/span> <span class=\"co1\">${fn[$index]}<\/span> <span class=\"br0\">]<\/span><span class=\"br0\">]<\/span>; <span class=\"kw1\">\u0633\u067e\u0633<\/span><br \/>\n<span class=\"co0\"># \u0627\u06af\u0631 \u0641\u0627\u06cc\u0644 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0641\u0627\u06cc\u0644 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f<\/span><br \/>\n<span class=\"kw3\">\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc<\/span> <span class=\"re1\">\u062f\u0633\u062a\u0648\u0631 $<\/span> <span class=\"co1\">${fn[$index]}<\/span><br \/>\n<span class=\"co0\"># \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0637\u0644\u0627\u0639 \u062f\u0647\u06cc\u062f \u06a9\u0647 \u0641\u0627\u06cc\u0644 \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a<\/span><br \/>\n<span class=\"kw3\">echo<\/span> <span class=\"st0\">&#8220;<span class=\"es3\">${fn[$index]}<\/span> \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a.&#8221;<\/span><\/p>\n<p>\u062f\u06cc\u06af\u0631<br \/>\n<span class=\"co0\">#\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0637\u0644\u0627\u0639 \u062f\u0647\u06cc\u062f \u06a9\u0647 \u0641\u0627\u06cc\u0644 \u0645\u0648\u062c\u0648\u062f \u0646\u06cc\u0633\u062a<\/span><br \/>\n<span class=\"kw3\">echo<\/span> <span class=\"st0\">&#8220;<span class=\"es3\">${fn[$index]}<\/span> \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.&#8221;<\/span><br \/>\n<span class=\"kw1\">\u0641\u06cc<\/span><br \/>\n<span class=\"kw1\">\u0627\u0646\u062c\u0627\u0645 \u0634\u062f\u0647<\/span><\/div>\n<\/div>\n<p>\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"codecolorer-container bash default\" style=\"overflow:auto;white-space:nowrap;width:680px;\">\n<div class=\"bash codecolorer\"><span class=\"co4\">$ <\/span><span class=\"kw2\">bash<\/span>  evaltest4.sh marks.docx item.txt product.docx<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u0633\u0647 \u0646\u0627\u0645 \u0641\u0627\u06cc\u0644 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u062e\u0631\u0648\u062c\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 marks.docx \u0648 product.docx \u062f\u0631 \u0645\u06a9\u0627\u0646 \u0641\u0639\u0644\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0648 \u0641\u0627\u06cc\u0644 \u0647\u0627 \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0646\u062f \u0648 item.txt \u062f\u0631 \u0645\u06a9\u0627\u0646 \u0641\u0639\u0644\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-44388\" src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" alt=\"\" width=\"728\" height=\"112\" data-lazy-srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031098_608_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 728w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/6-3-300x46.jpg 300w\" data-lazy-sizes=\"(max-width: 728px) 100vw, 728px\" data-lazy-src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031098_608_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" http: title=\"\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-44388\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031098_608_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg\" alt=\"\" width=\"728\" height=\"112\" srcset=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2023\/12\/1704031098_608_\u062f\u0633\u062a\u0648\u0631-Bash-eval.jpg 728w, https:\/\/linuxhint.com\/wp-content\/uploads\/2019\/07\/6-3-300x46.jpg 300w\" sizes=\"(max-width: 728px) 100vw, 728px\" title=\"\"><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span><strong>\u0646\u062a\u06cc\u062c\u0647<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0647\u0631 bash \u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0628\u0627 \u0627\u0639\u0644\u0627\u0645 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0627\u062c\u0631\u0627 \u06a9\u0631\u062f.  \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u062a \u062f\u0627\u062e\u0644\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f bash \u0648 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0633\u0631\u06cc \u0645\u062a\u063a\u06cc\u0631.  \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 &#8216;eval&#8217; \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u067e\u0627\u06a9 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u067e\u0633 \u0627\u0632 \u0645\u0637\u0627\u0644\u0639\u0647 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0627\u0632 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0631\u0627\u06cc \u0627\u0647\u062f\u0627\u0641 \u0645\u062e\u062a\u0644\u0641 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u0646\u062f.\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: 1402-12-31 17:28:11<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;12860&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;\u062f\u0633\u062a\u0648\u0631 Bash eval&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>\u062f\u0633\u062a\u0648\u0631 &#8220;eval&#8221; \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f bash \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u0645\u0627\u0646\u0646\u062f \u062f\u0633\u062a\u0648\u0631 shell. \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627 \u062f\u0631 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u0628\u0647 \u0647\u0645 \u0645\u062a\u0635\u0644 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0648\u0631\u0648\u062f\u06cc \u062f\u0633\u062a\u0648\u0631 shell \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f. &#8220;eval&#8221; \u062f\u0633\u062a\u0648\u0631 \u0631\u0627 \u062f\u0631 \u067e\u0648\u0633\u062a\u0647 \u0641\u0639\u0644\u06cc \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0632\u0645\u0627\u0646\u06cc \u0645\u0641\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u062c\u0631\u0627\u06cc \u0647\u0631 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":12861,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2740,1062],"tags":[1061,2745,2743,2748],"class_list":["post-12860","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bash-programming","category-bash-script","tag--bash-scripting","tag-2745","tag--bash","tag-2748"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/12860","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=12860"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/12860\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/12861"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=12860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=12860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=12860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}