{"id":34825,"date":"2023-05-14T06:47:47","date_gmt":"2023-05-14T06:47:47","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=34825"},"modified":"2023-05-14T06:47:49","modified_gmt":"2023-05-14T06:47:49","slug":"shell-scripting-tutorials-special-variables","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/shell-scripting-tutorials-special-variables\/","title":{"rendered":"Shell Scripting Tutorials: Special variables"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"663\" src=\"https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2023\/05\/shell-scripting-special-variables-1-1024x663.jpg\" alt=\"\" class=\"wp-image-34826\" srcset=\"https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2023\/05\/shell-scripting-special-variables-1-1024x663.jpg 1024w, https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2023\/05\/shell-scripting-special-variables-1-300x194.jpg 300w, https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2023\/05\/shell-scripting-special-variables-1-768x497.jpg 768w, https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2023\/05\/shell-scripting-special-variables-1.jpg 1177w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\">#!\/bin\/sh<\/span>\r\n\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"File Name: $0\"<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"First Parameter : $1\"<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"Second Parameter : $2\"<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"Quoted Values: $@\"<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"Quoted Values: $*\"<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">\"Total Number of Parameters : $#\"<\/span>\r\nHere is a sample run <span class=\"hljs-keyword\">for<\/span> the above script \u2212\r\n\r\n$.\/test.sh Zara Ali\r\nFile Name : .\/test.sh\r\nFirst Parameter : Zara\r\nSecond Parameter : Ali\r\nQuoted Values: Zara Ali\r\nQuoted Values: Zara Ali\r\nTotal Number of Parameters : <span class=\"hljs-number\">2<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_joinchat":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-34825","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/34825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=34825"}],"version-history":[{"count":1,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/34825\/revisions"}],"predecessor-version":[{"id":34827,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/34825\/revisions\/34827"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=34825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=34825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=34825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}