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In this article, the editor introduces in detail "how to use the Linux exit command", the content is detailed, the steps are clear, and the details are handled properly. I hope this article "how to use the Linux exit command" can help you solve your doubts.

Exit exits the current shell.

Profile exit [n] the primary purpose is to execute exit to cause shell to exit with a specified status value. If you do not set the parameter, exit with the return value of the last command as the return value of exit.

Parameter n (optional): the specified shell returns the value (integer).

The return value is the value of the parameter n you specify. If you specify a parameter greater than 255 or less than 0, the return value will always be between 0 and 255 by adding or minus 256.

Example exits the current shell:

[root@localhost ~] # exit logout can also use ctrl+d to exit the current terminal. The following is a list of ways to enable or disable this feature:

# Open ctrl+d exit terminal set-o ignoreeof # close ctrl+d exit terminal set + o ignoreeof in the script, enter the directory where the script is located, otherwise exit:

Cd $(dirname $0) | | exit 1 in the script, determine the number of parameters and print the usage mode if there is a mismatch. Exit:

If ["$#"-ne "2"]; then echo "usage: $0" exit 2 fi in the script, delete the temporary file when you exit:

Trap "rm-f tmpfile; echo Bye." EXIT checks the exit code of the previous command:

. / mycommand.sh EXCODE=$? If ["$EXCODE" = = "0"]; then echo "O.K" fi Note that this command is a bash built-in command. For help, please see the help command.

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