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Init script for a program that runs in a screen session
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#!/bin/sh | |
### BEGIN INIT INFO | |
# Provides: some-program | |
# Required-Start: $remote_fs $syslog | |
# Required-Stop: $remote_fs $syslog | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Short-Description: Some Program | |
### END INIT INFO | |
PATH="/sbin:/usr/sbin:/bin:/usr/bin" | |
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" | |
NAME="some-program" | |
DESC="Some Program" | |
LOG_FILE=/var/log/some-program-run.log | |
. /lib/lsb/init-functions | |
start_some_program() | |
{ | |
/usr/bin/screen -S some-program -d -m /bin/bash -c "while true; do /opt/bin/some-program >> ${LOG_FILE} 2>&1; done" | |
} | |
stop_some_program() | |
{ | |
# check if a screen session exists | |
SESSION_EXISTS=$(/usr/bin/screen -S some-program -Q 'select .' >/dev/null; echo $?) | |
if [ ${SESSION_EXISTS} -eq 0 ]; then | |
/usr/bin/screen -S some-program -X quit >> ${LOG_FILE} 2>&1 | |
fi | |
} | |
case "$1" in | |
start) | |
echo "Starting ${DESC}" | |
start_some_program | |
;; | |
stop) | |
echo "Stopping ${DESC}" | |
stop_some_program | |
;; | |
restart|force-reload) | |
echo "Restarting ${DESC}" | |
stop_some_program | |
case "$?" in | |
0|1) | |
start_some_program | |
;; | |
*) | |
echo "Failed to stop ${DESC}" >> ${LOG_FILE} 2>&1 | |
exit 1 | |
;; | |
esac | |
;; | |
*) | |
echo "Usage: /etc/init.d/${NAME} {start|stop|force-reload|restart}" >&2 | |
exit 1 | |
;; | |
esac |
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