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

Dumb solution: Connecting them through a named pipe (mkfifo). Then the command can be run second.

 mkfifo pipe
 tee out.txt < pipe &
 command > pipe
 echo $?