trap control in bash

bash_trap_control.sh

#!/bin/bash
# http://hacktux.com/bash/control/c
 
cleanup()
# example cleanup function
{
  rm -f /tmp/tempfile
  return $?
}
 
control_c()
# run if user hits control-c
{
  echo -en "exiting\n"
  cleanup
  exit $?
}
 
# trap keyboard interrupt (control-c)
trap control_c SIGINT
 
# main() loop
while true; do read x; done