Software » Squeezer

#!/bin/bash

# Our USR1 signal handler

function usr1_trap(){

    printf 'Here is the PID: %d\nExiting right-now!\n' $$

    # exit

}

# Register USR1 signal handler

trap usr1_trap USR1

printf 'Run this to stop me:\nkill -USR1 %d\n' $$

# Wait in background, not consuming CPU

while :; do

   sleep 9223372036854775807 & # int max (2^63 - 1)

   wait $!

done