examples/functions/exitstat

   1 # Contributed by Noah Friedman and Roland McGrath.
   2
   3 # To be run by the PROMPT_COMMAND variable, so that one can see what
   4 # the exit status of processes are.
   5
   6 function check_exit_status ()
   7 {
   8  local status="$?"
   9  local signal=""
  10
  11     if [ ${status} -ne 0 -a ${status} != 128 ]; then
  12        # If process exited by a signal, determine name of signal.
  13        if [ ${status} -gt 128 ]; then
  14           signal="$(builtin kill -l $[${status} - 128] 2>/dev/null)"
  15           if [ "$signal" ]; then signal="($signal)"; fi
  16        fi
  17        echo "[Exit ${status} ${signal}]" 1>&2
  18     fi
  19     return 0
  20 }
  21
  22 PROMPT_COMMAND=check_exit_status