Linux expect 命令

Linux expect命令

当shell中用到telnet,ftp,ssh需要要人机交互的服务时,这时可以使用expect实现自动交互.

如果你怕写在shell脚本的中密码被别人看到,你可以通过shc对脚本进行加密:shc –r –f脚本名

下面是一个ssh使用expect把文件存放到远程主机上的例子

#!/bin/bash

file_exist=false;

confirmed=false;

#程序绝对路径

while [ $file_exist = false ]

do

       echo -n "请输入程序路径,如:/u/tiptop/azz/4gl/p_zx.4gl:";

       read filename;

       if [ -z $filename ];

           then continue;

       else

          if [ -f $filename ];

               then file_exist=true;

           else

               echo "$filename文件不存在";

           fi

   fi

done

while [ $confirmed = false ]

do

       echo -n "确认上传y or n:"

       read c

       if [[ $c = y || $c = Y || $c = n || $c = N ]];

               then confirmed=true;

       else

               echo "请确认是否要上传"

       fi

done

if [[ $c = y || $c = Y ]];then

       target_filename=${filename}.`date +%Y_%m_%d_%H_%M_%S`

       #echo $filename

       expect <<-END1

       spawn ssh tiptop@10.134.x.x mv ${filename} ${target_filename}

       expect {

          #first connect, no public key in ~/.ssh/known_hosts

          "Are you sure you want to continue connecting (yes/no)?" {

          send "yes\r"

          expect "password:"

               send "mi_ma\r"

          }

          #already has public key in ~/.ssh/known_hosts

          "password:" {

               send "mi_ma\r"

          }

       }

       expect eof

       END1

       expect <<-END2

       spawn scp ${filename} tiptop@10.134.x.x:${filename}

       expect {

          #first connect, no public key in ~/.ssh/known_hosts

          "Are you sure you want to continue connecting (yes/no)?" {

          send "yes\r"

          expect "password:"

               send "mi_ma\r"

          }

          #already has public key in ~/.ssh/known_hosts

          "password:" {

               send "mi_ma\r"

          }

       }

       expect "*"

       send "exit\r"

       expect eof

       END2

       #记录log

       u_time=`date +%Y/%m/%d" "%H:%M:%S`

       ip=`who am i|cut -c37-80|sed s/")"//g`

       username=`whoami`

       echo "$username      $ip       ${u_time}       ${filename}" >> /u/out/upload.log

fi

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