bash - Piping command output to tee but also save exit code of command - Stack Overflow

bash - Piping command output to tee but also save exit code of command - Stack Overflow

You can set the pipefail shell option option on to get the behavior you want.

From the Bash Reference Manual:

The exit status of a pipeline is the exit status of the last command in the pipeline, unless the pipefail option is enabled (see The Set Builtin). If pipefail is enabled, the pipeline's return status is the value of the last (rightmost) command to exit with a non-zero status, or zero if all commands exit successfully.

Example:

$ false | tee /dev/null ; echo $?  0  $ set -o pipefail  $ false | tee /dev/null ; echo $?

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