Shell脚本-控制多主机操作

环境介绍

首先要做到各个主机之间无密ssh连接。这样会最大可能方便的控制。

脚本

命名为status

#!/bin/bash params=$@ i=166 for((i=166;i<=169;i++));do echo -------s$i $params ------- ssh s$i "$params" done 

测试

[root@s166 bin]# status java -version -------s166 java -version ------- bash: java: command not found -------s167 java -version ------- bash: java: command not found -------s168 java -version ------- bash: java: command not found -------s169 java -version ------- bash: java: command not found 

What?就给我看这个，它找不到这个命令，那我把它放到/usr/local/bin下

[root@s166 bin]# which java /home/fantj/jdk/bin/java [root@s166 bin]# ln -s /home/fantj/jdk/bin/java java javadoc javah javapackager javaws javac javafxpackager javap java-rmi.cgi [root@s166 bin]# ln -s /home/fantj/jdk/bin/java ./java [root@s166 bin]# ls java jps status xcall.sh [root@s166 bin]# status java -version -------s166 java -version ------- java version "1.8.0_171" Java(TM) SE Runtime Environment (build 1.8.0_171-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode) -------s167 java -version ------- bash: java: command not found -------s168 java -version ------- bash: java: command not found -------s169 java -version ------- bash: java: command not found 

好了，jps同理，我们只需要把命令创建软连接到/usr/local/bin下即可，每个主机都需要设置的。

效果

[root@s166 bin]# status jps -------s166 jps ------- 12641 Jps 1397 NameNode 1559 SecondaryNameNode 1727 ResourceManager -------s167 jps ------- 1764 DataNode 11610 Jps 1823 NodeManager -------s168 jps ------- 11572 Jps 1815 NodeManager 1756 DataNode -------s169 jps ------- 1813 NodeManager 1754 DataNode 11548 Jps [root@s166 bin]# status ls ~/.ssh -------s166 ls /root/.ssh ------- authorized_keys id_rsa id_rsa.pub known_hosts -------s167 ls /root/.ssh ------- authorized_keys id_rsa id_rsa.pub known_hosts -------s168 ls /root/.ssh ------- authorized_keys id_rsa id_rsa.pub -------s169 ls /root/.ssh ------- authorized_keys id_rsa id_rsa.pub