Menu
I have a bash script that I use to execute multiple commands in sequence and I need to return non-zero exit code if at least one command in the sequence returns non-zero exit code. I know there is a wait command for that but I'm not sure I understand how to use it.
UPD The script looks like this:
#!/bin/bash command1 command2 command3 All the commands run in foreground. All the commands need to run regardless of which exit status the previous command returned (so it must not behave as "exit on first error"). Basically I need to gather all the exit statuses and return global exit status accordingly.
237
Yes, they are executed sequentially. However, if you run a program in the background, the next command in your script is executed immediately after the backgrounded command is started.
Ampersand Operator (&) Sixth Bash shell command line Chaining Operator (Linux operator) is Ampersand Operator (&). Ampersand Operator is a kind of operator which executes given commands in the background. You can use this operator to execute multiple commands at once.
Just do it:
EXIT_STATUS=0 command1 || EXIT_STATUS=$? command2 || EXIT_STATUS=$? command3 || EXIT_STATUS=$? exit $EXIT_STATUS Not sure which of the statuses it should return if several of commands have failed.
71
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
