expect实现批量修改linux密码脚本分享

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:

复制代码代码如下:
#！/usr/bin/expect
if { $argc<2 } {
    send_user "usage: $argv0 <host file> <cmd file> "
    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 "$pass "
            }
            "$key_init" {
                send "yes "
            }
            "$key_confirm" {
                send "yes "
            }
            "$key_ps" {
                while {[gets $cmdfile cmd] >= 0} {
                    send "$cmd "
                    expect {
                        "$key_ps" {
                            continue
                        }
                        "$key_newpassword" {
                            send "$newpass "
                            expect "$key_newpassword" {
                                send "$newpass "
                                expect "$key_ps"
                                continue
                            }
                        }
                    }
                }
                seek $cmdfile 0 start
                send_user " "
                break
            }
            timeout {
                puts "$host timeout "
                break
            }
        }
    }
    send "exit "
    close
    wait
}

close $hostfile
close $cmdfile

exit