parity.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides: parity
# Required-Start: $remote_fs
# Required-Stop: $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Descrition: Parity Ethereum node
### END INIT INFO

NAME=parity
USER=ubuntu
LOGFILE=/var/log/${NAME}.log
PIDFILE=/run/${NAME}.pid

if [[ ! -f $PIDFILE ]]
then echo 0 > $PIDFILE
fi
if [[ ! -f $LOGFILE ]]
then echo 'Created' >> $LOGFILE
fi

if [[ $# -eq 0 ]]; then
    echo "Usage: $0 {start|stop|status}"
    exit 1
else
    COMMAND="$1"
fi

case $COMMAND in
start)
        chown $USER $PIDFILE
        chown $USER $LOGFILE
        su - $USER -c "parity daemon $PIDFILE --log-file=$LOGFILE"
;;
status)
PID=`cat $PIDFILE`
if [[ $PID -gt 0 && -e /proc/${PID} && -a /proc/${PID}/exe ]]
then echo $NAME 'is running'
else echo $NAME 'is stopped'
fi
;;
stop)
PID=`cat $PIDFILE`
if [[ $PID -gt 0 &&  -e /proc/${PID} && -a /proc/${PID}/exe ]]
then
        kill -s SIGINT `cat $PIDFILE`
        rm $PIDFILE
        echo "Stopped" >> $LOGFILE
fi
;;
esac