How Do I Find the Return Code in Unix?
Contents to Get the Exit Code of a Command Type Echo $? at the Command Prompt. in the Following Example a File Is Printed to the Terminal Using the Cat...
To get the exit code of a command type echo $? at the command prompt. In the following example a file is printed to the terminal using the cat command.
How do I find my Linux return code?
To check the exit code we can simply print the $? special variable in bash. This variable will print the exit code of the last run command. As you can see after running the ./tmp.sh command the exit code was 0 which indicates success, even though the touch command failed.
What is return code in shell script?
Exit codes are a number between 0 and 255, which is returned by any Unix command when it returns control to its parent process. … These can be used within a shell script to change the flow of execution depending on the success or failure of commands executed.
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