What is this script doing?

[WhiteT982]

I’ve been trying to get steam to close when I exit a steam game in Emulationstation using this script.

#!/bin/bash
# steamlaunch

steam -silent -applaunch $1 2>&1 | tee >(
  while read line; do
    if [[ $line == *"Game process removed: AppID $1"* ]]; then
      sleep 10; steam -shutdown; break
    fi
  done
)

It works sometimes and have been trying to troubleshoot why it doesn’t work all of the time? It seems to work better if I open emulationstation and only launch the steam game and then exit. If I launch some other game and exit then launch the steam game it hangs and won’t exit back to emulationstation. Specifically wondering what this part is doing?

$1 2>&1 | tee >(

Pulled it from here which says:
Used tee >( ... ) to allow the output to continue to STDOUT

[lizardwiz]

@WhiteT982 $1 is passing the 1st parameter (probably your steam game) to the "steam" command.

&2>1 is redirecting stderr to stdout (so you can see if an error occurs while reading stdout).