shell 获取时间及如果应用进程不存在时启动

#! /bin/bash
  curdate="`date +%Y-%m-%d,%H:%M:%S`";
  echo $curdate;
  log="/home/wwwroot/rundeck/start.log";
  stillRunning=$(ps -ef |grep "rundeck-launcher-2.6.7.jar" |grep -v "grep");
  if ["$stillRunning" == ""] ; then
     echo -e  "restart rundeck ${curdate} \n">>$log;
     eval "cd /home/wwwroot/rundeck && nohup java -XX:MaxPermSize=256m -Xmx1024m -Xms256m -server -jar rundeck-launcher-2.6.7.jar  &";
  fi