Software » Squeezer

#!/bin/bash

ctrlc_count=0

set -e -u

function no_ctrlc()

{

    let ctrlc_count++

    echo

    if [[ $ctrlc_count == 1 ]]; then

        echo "Stop that."

    elif [[ $ctrlc_count == 2 ]]; then

        echo "Once more and I quit."

    else

        echo "That's it.  I quit."

        exit

    fi

}

function helloWorld()

{

    echo "Hello Signal"

    ls

    ls

    echo $PWD

    # exit 0

}

function errorHandler()

{

    echo "error"

    exit 0

}

# trap no_ctrlc SIGINT

# trap helloWorld SIGUSR1

# trap helloWorld SIGUSR2

# trap errorHandler ERR

# 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

echo "PID: $BASHPID, $$"

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

echo Sleeping

while true

do

    sleep .5

done

##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

echo End

#---fin--------------------------------------