最近对linux批量执行的脚本很感兴趣,在网上到处找有关expect批量执行脚本,今天就给大家共享一个批量修改密码的脚本.

脚本内容:

#!/usr/bin/expect

if { $argc<2 } {

    send_user "usage: $argv0 <host file> <cmd file> n"

    exit

}

 

# 机器列表数据格式:  IP  端口  旧密码  新密码

set hostfile    [ open [lindex $argv 0] ]

# 命令列表数据格式:  一条命令一行

set cmdfile    [ open [lindex $argv 1] ]

 

# 数据文件分割符,默认为空格

set part " "

 

# 过滤关键字

set key_password "password: "

set key_init "(yes/no)? "

set key_confirm "'yes' or 'no': "

set key_ps "*]# "

set key_newpassword "UNIX password: "

set timeout 30

 

log_file ./exprct.log

match_max 20480

 

while {[gets $hostfile _hosts_] >= 0} {

    set hosts [string trim $_hosts_]

    set str_index [string first $part $hosts]

    set host [string trim [string range $hosts 0 $str_index]]

    set temp [string trim [string range $hosts [expr $str_index + 1] [string length $hosts]]]

    set str_index [string first $part $temp]

 

    if { $str_index == -1 } {

        set port 22

        set pass $temp

        set newpass $temp

    } else {

        set port [string trim [string range $temp 0 $str_index]]

        set temp_pass [string trim [string range $temp [expr $str_index + 1] [string length $temp]]]

        set str_index [string first $part $temp_pass]

        set pass [string trim [string range $temp_pass 0 $str_index]]

        set newpass [string trim [string range $temp_pass [expr $str_index + 1] [string length $temp_pass]]]

    }

 

    spawn ssh -p $port $host

    while {1} {

        expect {

            "$key_password" {

                send "$passr"

            }

            "$key_init" {

                send "yesr"

            }

            "$key_confirm" {

                send "yesr"

            }

            "$key_ps" {

                while {[gets $cmdfile cmd] >= 0} {

                    send "$cmdr"

                    expect {

                        "$key_ps" {

                            continue

                        }

                        "$key_newpassword" {

                            send "$newpassr"

                            expect "$key_newpassword" {

                                send "$newpassr"

                                expect "$key_ps"

                                continue

                            }

                        }

                    }

                }

                seek $cmdfile 0 start

                send_user "r"

                break

            }

            timeout {

                puts "$host timeoutn"

                break

            }

        }

    }

    send "exitr"

    close

    wait

}

 

close $hostfile

close $cmdfile

 

exit