#!/bin/bash
#########################################################################
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the version 3 of the GNU General Public License #
# as published by the Free Software Foundation. #
# #
# This program is distributed in the hope that it will be useful, but #
# WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU #
# General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see . #
# #
# Written by and Copyright (C) Francois Fleuret #
# Contact for comments & bug reports #
#########################################################################
# Kills all xterms which are running bash with no sub-process
set -e
TERMINAL_APP=xterm
[[ "${TERMINAL_APP}" ]] || TERMINAL_APP=xterm
NB_KILLED=0
NB_TOTAL=0
SHELL_NAME=$(basename ${SHELL})
# Loop through the pid of xterms
for ppid in $(ps h -C "${TERMINAL_APP}" -o pid); do
N=0
# For each, loop through the child shells
for pid in $(ps h --ppid $ppid -o pid,cmd | awk '{ if($2 == "'${SHELL_NAME}'") { print $1 }}'); do
# For each, count how many sub-process we do have
K=$(ps h --ppid $pid -o pid | wc -l)
N=$((N+K+1))
done
# If there is only one, kill the xterm
if [[ $N == 1 ]]; then
kill -USR2 $ppid
NB_KILLED=$((NB_KILLED+1))
fi
NB_TOTAL=$((NB_TOTAL+1))
done
echo "Killed ${NB_KILLED} / ${NB_TOTAL} XTerm(s)"