{"id":2252,"date":"2023-01-28T09:00:29","date_gmt":"2023-01-28T03:30:29","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=2252"},"modified":"2023-01-28T09:00:29","modified_gmt":"2023-01-28T03:30:29","slug":"bash-get-exit-code-of-command-on-a-linux-unix","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/bash-get-exit-code-of-command-on-a-linux-unix\/","title":{"rendered":"Bash get exit code of command on a Linux \/ Unix"},"content":{"rendered":"

In Bash, the exit code of a command can be accessed using the special variable $?<\/code>. The exit code is a numeric value that represents the status of the command’s execution. A value of 0 typically indicates success, while a non-zero value indicates failure.<\/p>\n

Here is an example of how to check the exit code of a command:<\/p>\n

\n
<\/div>\n
command<\/span>
\necho<\/span> \"Exit code: $?\"<\/span>
\n<\/code><\/div>\n<\/div>\n

You can also use command substitution to assign the exit code to a variable:<\/p>\n

\n
<\/div>\n
result=$(command)<\/span>
\necho \"Exit code: $?<\/span>\"<\/span>
\n<\/code><\/div>\n<\/div>\n

You can also use &&<\/code> operator to execute a command only if the previous command was successful.<\/p>\n

\n
<\/div>\n
command1 && command2
\n<\/code><\/div>\n<\/div>\n

You can also use ||<\/code> operator to execute a command only if the previous command was unsuccessful.<\/p>\n

\n
<\/div>\n
command1 || command2
\n<\/code><\/div>\n<\/div>\n

In addition, you can use if<\/code> statement to check the exit code and take different actions based on the result:<\/p>\n

\n
<\/div>\n
if<\/span> command<\/span>; then<\/span>
\n echo<\/span> \"Command succeeded\"<\/span>
\nelse<\/span>
\n echo<\/span> \"Command failed\"<\/span>
\nfi<\/span>
\n<\/code><\/div>\n<\/div>\n

Note: These are just general examples, for more detailed and accurate steps please refer to the official documentation of Bash and Linux\/Unix.<\/p>\n","protected":false},"excerpt":{"rendered":"

In Bash, the exit code of a command can be accessed using the special variable $?. The exit code is a numeric value that represents the status of the command’s execution. A value of 0 typically indicates success, while a non-zero value indicates failure. Here is an example of how to check the exit code … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2252","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"\nBash get exit code of command on a Linux \/ Unix - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/bash-get-exit-code-of-command-on-a-linux-unix\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bash get exit code of command on a Linux \/ Unix - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"In Bash, the exit code of a command can be accessed using the special variable $?. 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