I have a function
function f() {
command 1
command 2
command 3
command 4
}
I want function f() to somehow tell me there is an error if any of the 4 commands fails.
I also don't want to set -e. I want four commands all run, even if one fails.
How do I do that? Sorry for the newbie question -- I am quite new to bash scripting.
If I understand what you're asking correctly, you can do this:
f() {
err=""
command 1 || err=${err}1
command 2 || err=${err}2
command 3 || err=${err}3
command 4 || err=${err}4
# do something with $err to report the error
}
Of course, instead of using a variable you could simply put echo commands after the || if all you need to do is print an error message:
f() {
command 1 || echo "command 1 failed" >&2
command 2 || echo "command 2 failed" >&2
command 3 || echo "command 3 failed" >&2
command 4 || echo "command 4 failed" >&2
}
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