PM2 process smart start / reload

pm2-process-start-reload.sh

declare -a processNames=(
    "test" 
    "test2"
    "test3"
    "test4"
)

## now loop through the above array
for processName in "${processNames[@]}"
do
    echo "$processName"
    pm2ProcessID=`pm2 pid $processName`
    echo "$pm2ProcessID"
    if [ "${pm2ProcessID}" = "" ]; then
        echo 'process start'
        pm2 start ./build/src/index.js --name="${processName}"
    else
        echo 'process reload'
        pm2 reload "${processName}"
    fi;
done
echoi $?