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

Base on @brian-s-wilson 's answer; this bash helper function:

pipestatus() {
  local S=("${PIPESTATUS[@]}")

  if test -n "$*"
  then test "$*" = "${S[*]}"
  else ! [[ "${S[@]}" =~ [^0\ ] ]]
  fi
}

used thus:

1: get_bad_things must succeed, but it should produce no output; but we want to see output that it does produce

get_bad_things | grep '^'
pipeinfo 0 1 || return

2: all pipeline must succeed

thing | something -q | thingy
pipeinfo || return