Pipe output and capture exit status in Bash

Question

I want to execute a long running command in Bash, and both capture its exit status, and tee its output.

So I do this:

command | tee out.txt
ST=$?
         


        

Answer 1

using bash's set -o pipefail is helpful

pipefail: the return value of a pipeline is the status of the last command to exit with a non-zero status, or zero if no command exited with a non-zero status