How to Catch Ctrl-C in Shell Script

ref: https://stackpointer.io/script/how-to-catch-ctrl-c-in-shell-script/248/

 

#!/bin/sh

# this function is called when Ctrl-C is sent
function trap_ctrlc ()
{
    # perform cleanup here
    echo "Ctrl-C caught...performing clean up"

    echo "Doing cleanup"

    # exit shell script with error code
    # if omitted, shell script will continue execution
    exit
}

# initialise trap to call trap_ctrlc function
# when signal  (SIGINT) is received
trap "trap_ctrlc" 

# your script goes here
echo "going to sleep"
sleep
echo "end of sleep"