1.ORACLE 变量替代功能: 关闭变量替代 -> set define off; 开启变量替代 -> set define on; 替换默认值"&" -> set define *; ------------------------------------------------------------------- 2.linux部署项目常用命令: 查看 tomcat 情况 -> ps -ef|grep tomcat cd ../ ->返回上级目录; cd / ->返回最高级目录 /; cd bin ./startup.sh ./shutdown.sh ->进入tomcat bin目录下,启动服务器,关闭服务器; ------------------------------------------------------------------- 3.linux定位JDK安装路径: [root@197 ~]# java -version [root@197 ~]# which java /usr/bin/java [root@197 ~]# ls -lrt /usr/bin/java lrwxrwxrwx 1 root root 22 Aug 26 2014 /usr/bin/java -> /etc/alternatives/java [root@197 ~]# ls -lrt /etc/alternatives/java lrwxrwxrwx 1 root root 46 Mar 1 2016 /etc/alternatives/java -> /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java ------------------------------------------------------------------- 4.linux系统操作定时任务: 表达式示例-> */10 8-20 * * * /home/box_allot/wf.sh 0 8 * * * /home/box_allot/re.sh 0 */1 * * * /home/box_allot/ot.sh * * * * * /home/box_allot/wf.sh 常用命令-> service crond start //启动服务 service crond stop //关闭服务 service crond restart //重启服务 service crond reload //重新载入配置 sudo chmod 777 test.sh //脚本授权 tail -f /var/spool/mail/root //查看定时任务邮件 tail -f /var/log/cron //查看定时任务日志
