/usr/share/doc/bash/examples/functions/exitstat is in bash-doc 4.3-6ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | # Contributed by Noah Friedman and Roland McGrath.
# To be run by the PROMPT_COMMAND variable, so that one can see what
# the exit status of processes are.
function check_exit_status ()
{
local status="$?"
local signal=""
if [ ${status} -ne 0 ] && [ ${status} != 128 ]; then
# If process exited by a signal, determine name of signal.
if [ ${status} -gt 128 ]; then
signal="$(builtin kill -l $((${status} - 128)) 2>/dev/null)"
if [ "$signal" ]; then signal="($signal)"; fi
fi
echo "[Exit ${status} ${signal}]" 1>&2
fi
return 0
}
PROMPT_COMMAND=check_exit_status
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