启动脚本, 如果进程已存在, 输出错误信息后退出;
- #! /bin/bash
- PIDS=`ps -ef | grep '/usr/bin/node ./index.js' | grep '?' | awk '{print $2}'`
- if [ -n "$PIDS" ]; then
- echo "ERROR: The index.js (user async service) already started!"
- echo "PID: $PIDS"
- exit 1
- fi
- echo 'start index.js ...'
- cd /myservice
- ./nohup index.JS 2>&1>/dev/null &
- sleep 3
- str=$"\n"
- sstr=$(echo -e $str)
- echo $sstr
- echo "start index.js success"
来源: http://www.bubuko.com/infodetail-3035003.html