Linux expect基础

远程连接对方机器 执行命令，将结果保存到文件 远程传送过来，本机读取数据判断 #!/bin/bash /usr/bin/expect >/dev/null 2>&1 <<EOF set timeout 30 spawn ssh root@192.168.2.128 expect "*password:" send "123456\r" expect "*#" send "service heartbeat status >/tmp/status \r" spawn scp root@192.168.2.128:/tmp/status /root/ceshi-heartbeat/ expect "*password:" send "123456\r" expect "*#" exit expect eof EOF cat status|grep "heartbeat OK" >/dev/null 2>&1 [ $? = 0 ]&& echo "OK" [ $? != 0 ]&& echo "not OK" #!/bin/bash /usr/bin/expect >/dev/null 2>&1 <<EOF spawn ssh root@192.168.2.129 expect "*password:" send "123456\r" expect "*#" send " mysql -e \"start slave;\" \r" expect "*#" send "exit\r" expect eof EOF ~ 、使用脚本文件的例子--实现自动输密码 #!/usr/bin/expect -f set password 123456 #download spawn scp root@192.168.1.218:/root/a.wmv /home/yangyz/ set timeout 300 expect "root@192.168.1.218's password:" set timeout 300 send "$password\r" set timeout 300 send "exit\r" expect eof 3、在sh脚本中嵌入expect的例子--通过连上一个公网的服务器再转跳到一个内网的服务器上，用脚本实现不用输密码，直接使用./goto.sh servername #!/bin/bash passmsmallq10="a" passzhsh="a" passfcwr="b" passwapfx="c" passadfx="d" ip1="200.100.10.10" ip2="10.100.100.70" ip3="10.100.100.60" ip4="10.100.100.10" ip5="10.100.100.20" case $1 in "zhsh") passstr=$passzhsh ipstr=$ip2 ;; "fcwr") passstr=$passfcwr ipstr=$ip3 ;; "wapfx") passstr=$passwapfx ipstr=$ip4 ;; "adfx") passstr=$passadfx ipstr=$ip5 ;; *) echo "The parameter $1 isn't exist" exit 0 ;; command1="ssh -l m_smallq -p 36000 $ip1" command2="ssh -l mqq -p 36000 $ipstr" expect -c " set timeout 60; spawn $command1; expect { \"221.130.15.10's password:\" {send \"$passmsmallq10\r\"; exp_continue} \"m_smallq\" {send \"$command2\r\"; exp_continue} \"mqq's password:\" {send \"$passstr\r\";interact} } " 对上面例子的expect的解说 expect -c "..." --里面输入命令 expect {...} --里面的多行记录，从上向下扫描匹配，谁先匹配谁先处理。 4、ssh到另一台机子执行df -h后退出，要点是send后面可以跟多个命令，通过\r来分行成多个命令 #!/bin/bash ip1="183.62.178.191" command1="ssh -l root -p 14322 $ip1" expect -c " spawn $command1; expect { \"183.62.178.191's password:\" {send \"aa\r\"; exp_continue} \"root@\" {send \"df -h\r exit\r\"; exp_continue} } "