Control qbittorrent-nox running in back ground as service.

qbittorrent.sh

#!/usr/bin/env bash

function start {
$exe -d --webui-port=4713 --configuration=/etc/default/qbittorrent-nox --save-path=/etc/default/qbittorrent-nox/torrents
}

function status {
PROCESS=$(ps aux | grep qbittorrent-nox | grep -v 'grep')
PROCESS_ID=$(echo $PROCESS | awk -F" " '{print $2}')
}

function stop {
kill $PROCESS_ID
}

exe=$(which qbittorrent-nox)

if [ -z "$exe" ];then
        echo "qbittorrent-nox not found."
        exit 1
fi

if [ $1 ]; then
        case $1 in
        'start')
                status
                if [ $PROCESS_ID ];then
                        echo "Already running with process id $PROCESS_ID"
                        exit 0
                fi
                start
                ;;
        'stop')
                status
                if [ -z "$PROCESS" ]; then echo "Not running.";exit 0;fi
                echo "Stopping process id $PROCESS_ID"
                stop
                ;;
        'status')
                status
                if [ -z "$PROCESS" ]; then echo "Not running.";exit 0;fi
                echo "Running with process id $PROCESS_ID"
                ;;
        *)
                echo "Invalid option $1"
                ;;
        esac
fi