新建脚本文件
touch retomcat.sh
vi retomcat.sh
1 #!/bin/bash 2 #tomcat部署路径 3 tomcatPath1=/u01/kf/apache-tomcat-zhkf1 4 tomcatPath2=/u01/kf/apache-tomcat-zhkf2 5 tomcatPath3=/u01/kf/apache-tomcat-zhkf3 6 7 echo "[info][$(date +'%F %H:%M:%S')]正在监控tomcat，路径：$tomcatPath1" 8 # awk '{print $2}' 输出按空格分割的第二个字符 9 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath1}" | grep -v 'grep' | awk '{print $2}'` 10 echo "[info]apache-tomcat-zhkf1进程号为${pid}" 11 #如果进程号不为空 12 if [ -n "${pid}" ]; then 13 echo "[info][$(date +'%F %H:%M:%S')]正在运行的tomcat进程为：$pid" 14 echo "[info][$(date +'%F %H:%M:%S')]tomcat已经启动，准备使用shutdown命令关闭..." 15 $tomcatPath1"/bin/shutdown.sh" 16 sleep 2 17 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath1}" | grep -v 'grep' | awk '{print $2}'` 18 if [ -n "$pid" ]; then 19 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭失败，准备kill进程..." 20 kill -9 $pid 21 echo "[info][$(date +'%F %H:%M:%S')]kill进程完毕！" 22 sleep 1 23 else 24 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭成功！" 25 fi 26 #进程号为空 27 else 28 echo "[info][$(date +'%F %H:%M:%S')]tomcat未启动！" 29 fi 30 echo "[info][$(date +'%F %H:%M:%S')]准备启动tomcat..." 31 $tomcatPath1"/bin/startup.sh" 32 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath1}" | grep -v 'grep' | awk '{print $2}'` 33 if [ -n "${pid}" ]; then 34 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath1重启成功" 35 else 36 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath1重启失败" 37 38 fi 39 40 41 echo "[info][$(date +'%F %H:%M:%S')]正在监控tomcat，路径：$tomcatPath2" 42 # awk '{print $2}' 输出按空格分割的第二个字符 43 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath2}" | grep -v 'grep' | awk '{print $2}'` 44 echo "[info]apache-tomcat-zhkf1进程号为${pid}" 45 #如果进程号不为空 46 if [ -n "${pid}" ]; then 47 echo "[info][$(date +'%F %H:%M:%S')]正在运行的tomcat进程为：$pid" 48 echo "[info][$(date +'%F %H:%M:%S')]tomcat已经启动，准备使用shutdown命令关闭..." 49 $tomcatPath2"/bin/shutdown.sh" 50 sleep 2 51 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath2}" | grep -v 'grep' | awk '{print $2}'` 52 if [ -n "$pid" ]; then 53 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭失败，准备kill进程..." 54 kill -9 $pid 55 echo "[info][$(date +'%F %H:%M:%S')]kill进程完毕！" 56 sleep 1 57 else 58 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭成功！" 59 fi 60 #进程号为空 61 else 62 echo "[info][$(date +'%F %H:%M:%S')]tomcat未启动！" 63 fi 64 echo "[info][$(date +'%F %H:%M:%S')]准备启动tomcat..." 65 $tomcatPath2"/bin/startup.sh" 66 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath2}" | grep -v 'grep' | awk '{print $2}'` 67 if [ -n "${pid}" ]; then 68 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath2重启成功" 69 else 70 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath2重启失败" 71 72 fi 73 74 echo "[info][$(date +'%F %H:%M:%S')]正在监控tomcat，路径：$tomcatPath3" 75 # awk '{print $2}' 输出按空格分割的第二个字符 76 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath3}" | grep -v 'grep' | awk '{print $2}'` 77 echo "[info]apache-tomcat-zhkf1进程号为${pid}" 78 #如果进程号不为空 79 if [ -n "${pid}" ]; then 80 echo "[info][$(date +'%F %H:%M:%S')]正在运行的tomcat进程为：$pid" 81 echo "[info][$(date +'%F %H:%M:%S')]tomcat已经启动，准备使用shutdown命令关闭..." 82 $tomcatPath3"/bin/shutdown.sh" 83 sleep 2 84 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath3}" | grep -v 'grep' | awk '{print $2}'` 85 if [ -n "$pid" ]; then 86 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭失败，准备kill进程..." 87 kill -9 $pid 88 echo "[info][$(date +'%F %H:%M:%S')]kill进程完毕！" 89 sleep 1 90 else 91 echo "[info][$(date +'%F %H:%M:%S')]使用shutdown命令关闭成功！" 92 fi 93 #进程号为空 94 else 95 echo "[info][$(date +'%F %H:%M:%S')]tomcat未启动！" 96 fi 97 echo "[info][$(date +'%F %H:%M:%S')]准备启动tomcat..." 98 $tomcatPath3"/bin/startup.sh" 99 pid=`ps -ef|grep tomcat | grep -w "${tomcatPath3}" | grep -v 'grep' | awk '{print $2}'` 100 if [ -n "${pid}" ]; then 101 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath3重启成功" 102 else 103 echo "[info][$(date +'%F %H:%M:%S')]$tomcatPath3重启失败" 104 105 fi
对可执行文件授权
chmod +x retomcat.sh
执行脚本命令
./retomcat.sh > /home/cspgs/retomcat.logs 2>&1
查看后台打印日志
tail -f retomcat.logs
另：
shell中每个进程都和三个系统文件相关联
- 标准输入stdin
- 标准输出stdout
- 标准错误stderr
三个系统文件的文件描述符分别为0，1和2。
所以这里2>&1的意思就是将标准错误也输出到标准输出当中。