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In the bash shell, I could echo $? to get the exit code of a program run on the cli. What is the equivalent in the fish shell? Can't seem to find this in the docs.
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Extracting the elusive exit code To display the exit code for the last command you ran on the command line, use the following command: $ echo $? The displayed response contains no pomp or circumstance. It's simply a number.
Exit Codes. Exit codes are a number between 0 and 255, which is returned by any Unix command when it returns control to its parent process. Other numbers can be used, but these are treated modulo 256, so exit -10 is equivalent to exit 246 , and exit 257 is equivalent to exit 1 .
“Normally the exit status is 0 if a line is selected, 1 if no lines were selected, and 2 if an error occurred. However, if the -q or --quiet or --silent is used and a line” You can check if a command is successful or not by using the following syntax. grep -q "Error" test.log.
According to the official Fish documentation, you can use the $status variable:
How do I get the exit status of a command?
Use the
$statusvariable. This replaces the$?variable used in some other shells.
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