Linux sh+expect 思科设备的脚本 static 路由更改

Question

我有以下脚本，现在我在使用此脚本的一些网络更改中遇到了以下问题。

.sh 脚本

 echo -n "Enter the SSH username :"
 read -e username
 echo -ne '\n'
 echo -n "Enter the SSH password :"
 read -s -e password
 echo -ne '\n'
 for device in `cat /var/scripts/list.txt`; do
 /var/scripts/config_changer_multi_device/configure-cisco.exp $device $password $username ;
 done

和 following.expect 脚本：

#!/usr/bin/expect -f

 set hostname [lindex $argv 0]
 set username [lindex $argv 2]
 set password [lindex $argv 1]
 
 send_user "\n"
 send_user ">>>>>  Working on $hostname @ [exec date] <<<<<\n"
 send_user "\n"
 
 spawn ssh -o StrictHostKeyChecking=no $username\@$hostname

 expect {
 timeout { send_user "\nTimeout Exceeded - Check Host\n"; exit 1 }
 eof { send_user "\nSSH Connection To $hostname Failed\n"; exit 1 }
 "*#" {}
 "*assword:" {
 send "$password\n"
 }
 }
 
 expect "*#"
 send "enable\n"
 expect "*#"
 send "conf t\n"
 expect "(config)#"
 send "ip route 8.8.8.8 255.255.255.255 $gateway\n"
 expect "(config)#"

 send "exit\n"
 expect "*#"
 send "write mem\n"
 expect "*#"
 send "exit\n"
 expect ":~\$"
 exit

我运行 .sh 脚本，为 ssh 连接提供用户登录名和密码。 当我有 static 网关而不是变量时，这工作正常。 我想要的是在 static 路由添加具有从文件中获取值的变量 $gateway 的位置。 For example If I have file list.txt with router IP 10.100.100.50 I want to script gets also first value from file gateway.txt then second position from list.txt and gateway.txt and so on because on every router gateway IP is another .

提前感谢您的帮助。

Answer 1

也许你想要

#!/usr/bin/env bash
read -p "Enter the SSH username : " username
read -p "Enter the SSH password : " -s -e password

cd /var/scripts      # or perhaps: cd "$(dirname "$0")"

while IFS=$'\t' read -r device gateway; do
    ./config_changer_multi_device/configure-cisco.exp "$device" "$gateway" "$password" "$username"
done < <(
    paste ./list.txt ./gateway.txt
)

---

为了增加一点安全性，密码不会显示在ps output 中供任何人查看：

#!/usr/bin/env bash
read -p "Enter the SSH username : " username
read -p "Enter the SSH password : " -s -e password
export username password

cd /var/scripts      # or perhaps: cd "$(dirname "$0")"

while IFS=$'\t' read -r device gateway; do
    ./config_changer_multi_device/configure-cisco.exp "$device" "$gateway"
done < <(
    paste ./list.txt ./gateway.txt
)

而期望脚本看起来像

#!/usr/bin/expect -f

lassign $argv hostname gateway
set username $env(username)
set password $env(password)

# ...