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How to write init script for PGAgent

We  wrote an init script for PGAgent. It may need some tweaking but it gets the job done in our production environment.
#!/bin/bash
#
# /etc/init.d/pgagent
#

test -f /lib/lsb/init-functions || exit 1
. /lib/lsb/init-functions

PIDFILE=/var/run/pgagent.pid
prog=PGAgent
PGAGENTDIR=/usr/bin
PGAGENTOPTIONS="hostaddr=127.0.0.1 dbname=postgres user=postgres"

start() {
    log_begin_msg "Starting PGAgent"
    start-stop-daemon -b --start --quiet --exec "$PGAGENTDIR/pgagent" --name pgagent --startas "$PGAGENTDIR/pgagent" -- $PGAGENTOPTIONS || log_end_msg 1
    log_end_msg 0
}

stop() {
    log_begin_msg "Stopping PGAgent"
    start-stop-daemon --stop --quiet -n pgagent || log_end_msg 1
    log_end_msg 0
}

#
# See how we were called.
#
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  reload|restart)
    stop
    start
    RETVAL=$?
    ;;
  status)
    status /usr/bin/pgagent
    RETVAL=$?
    ;;
  *)
    log_success_msg "Usage: $0 {start|stop|restart|reload|status}"
    exit 1
esac

exit 0

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