#!/bin/bash

trap "printf \"%s\n\" HUP" SIGHUP
trap "printf \"%s\n\" INT" SIGINT
trap "printf \"%s\n\" QUIT" SIGQUIT
trap "printf \"%s\n\" TRAP" SIGTRAP
trap "printf \"%s\n\" ABRT" SIGABRT
trap "printf \"%s\n\" KILL" SIGKILL
trap "printf \"%s\n\" TERM" SIGTERM
trap "printf \"%s\n\" CHLD" SIGCHLD
#trap "printf "%s\n" DEBUG" DEBUG
# ak nechceme ziadnu akciu pre dany signal:
# trap "" SIGINT

while :
do

    printf "\nZadaj prikaz>"
    read prikaz
    eval "$prikaz"

done