Bash ignoring error for a particular command

Question

I am using following options

set -o pipefail set -e 

In bash script to stop execution on error. I have ~100 lines of script executing and I don't want to check return code of every line in the script.

But for one particular command, I want to ignore the error. How can I do that?

Answer 1

The solution:

particular_script || true 

Example:

$ cat /tmp/1.sh particular_script() {     false }  set -e  echo one particular_script || true echo two particular_script echo three  $ bash /tmp/1.sh one two 

three will be never printed.

Also, I want to add that when pipefail is on, it is enough for shell to think that the entire pipe has non-zero exit code when one of commands in the pipe has non-zero exit code (with pipefail off it must the last one).

$ set -o pipefail $ false | true ; echo $? 1 $ set +o pipefail $ false | true ; echo $? 0