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This article is about how expect automatically logs in to the switch in linux to save the configuration. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The telnet.exp file is as follows:

#! / usr/bin/expect-f set ip [lindex $argv 0] set username [lindex $argv 1] set password [lindex $argv 2] set superpassword [lindex $argv 3] set timeout 10 spawn telnet $ip expect {"name" {send "$username\ r"; exp_continue} "* assword" {send "$password\ r"; exp_continue} "* >" {send "enable\ r"; exp_continue} expect {"* assword" {send "$superpassword\ r" Exp_continue} "* #" {exp_send "wr\ r";}} exp_send "quit\ r" expect eof

Command execution:

. / telnet.exp 192.168.0.80 admin cisco cisco

The parameters after the telnet.exp command are switch IP, login account, password, and enable password.

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