Shell scripts automatically log on to the server and install JDK (Code tutorial), shelljdk

Shell scripts automatically log on to the server and install JDK (Code tutorial), shelljdk
1. Write the installation script

Install. sh

! /Bin/bashURL = "https: // ***/jdk-8u161-linux-x64.tar.gz "yum install-y wgetwget $ URLtar-zxvf jdk-8u161-linux-x64.tar.gz-C/usr/localcat>/etc/profile <EOFexport JAVA_HOME =/usr/local/ jdk1.8.0 _ 161 export JRE_HOME =\\ {JAVA_HOME}/jreexport PATH =\$ {JAVA_HOME}/bin: \ $ PATHexport CLASSPATH =. :\$ {AVA_HOME}/lib :\$ {JRE_HOME}/libEOF

2. ssh password-free login and run the installation script

#! /Bin/bashSERVERS = "centos01 centos02 centos03 centos04" PASSWORD = centos # auto login to serverauto_ssh_login () {objective CT-c "set timeout-1; spawn ssh-copy-id $1; keep CT {* (yes/no) * {send -- yes \ r; exp_continue;} * password: * {send -- $2 \ r; exp_continue;} eof {exit 0 ;}}" ;}ssh_copy_id () {for SERVER in $ SERVERS do auto_ssh_login $ SERVER $ PASSWORD done} ssh_copy_idfor SERVER in $ SERVERSdo scp install. sh root @ $ SERVER:/root ssh root @ $ SERVER/root/install. shdone