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

Outside of bash, you can do:

bash -o pipefail  -c "command1 | tee output"

This is useful for example in ninja scripts where the shell is expected to be /bin/sh.