一般服务器部署在linux系统中,
那么在linux 系统中如何查看tomcat日志呢?
场景1:浏览器报错了,如何定位错误
查看tomcat 日志的尾部
Shell代码
- tail -n 50 ../../logs/catalina.out
tail表示只显示catalina.out 最后n 行
场景2:如何实时查看tomcat日志内容呢?
Shell代码
- tail -f ../../logs/catalina.out
场景3:通过关键字查询日志
Shell代码
- grep -nH "Excetion message" test.text
说明:grep的参数说明
-n, --line-number 行号
-H, --with-filename 打印每个匹配的文件名
-r, --recursive like --directories=recurse 递归
判断tomcat是否在运行
Shell代码
- #!/bin/sh
- $grep_result
- grep_result=`ps -ef |grep tomcat|grep "/home/whuang/software/apache/apache-tomcat-7.0.53"|grep -v "grep"`
- echo $grep_result
- if [ x"$grep_result" = x"" ];then
- echo "tomcat not run"
- else
- echo "tomcat is running..."
- fi
定时启动tomcat
编辑定时器:
crontab -e
| */1 * * * * /home/whuang/software/auto_start_tomcat.sh |
每隔一分钟就执行指定脚本
脚本内容如下:
Shell代码
- #!/bin/sh
- $grep_result
- grep_result=`ps -ef |grep tomcat|grep "/home/whuang/software/apache/apache-tomcat-7.0.53"|grep -v "grep"`
- if [ x"$grep_result" = x"" ];then
- catalina_home2=/home/whuang/software/apache/apache-tomcat-7.0.53
- CATALINA_HOME=$catalina_home2
- cd $catalina_home2/bin
- ./startup.sh
- else
- echo "tomcat is running..."
- fi
