Question

此脚本无法按预期工作：

#!/usr/bin/expect
set timeout 2
set server [lindex $argv 0]
set user [lindex $argv 1]
set password [lindex $argv 2]
set mac [lindex $argv 3]
set interface "po1"
spawn ssh $user@$server
expect "Password:"
send -- "$password\n"
expect "*>"
send "show mac address-table address $mac\n"
# 100      1cc1.de65.441c   dynamic ip,ipx,assigned,other Port-channel43
expect -re { (\d+) *($mac) *(dynamic|static) *(.*) *(.*)} {
        set interface $expect_out(5,string)
        expect "*>"
        send "show interface $interface status\n"
}
send "exit\n"
interact

在上面发出show mac命令后，输出包含一行，看起来就像下面评论的一行。但是下面的期望-re块永远不会被命中，使它超时并发送退出命令。

示例输出： spawn ssh user @ host 密码：

================= Host login banner  =================
host>show mac address-table address 1cc1.de65.441c
Unicast Entries
 vlan     mac address     type        protocols               port
---------+---------------+--------+---------------------+-------------------------
 100      1cc1.de65.441c   dynamic ip,ipx,assigned,other Port-channel43


host>exit
Connection to host closed.

Answer 1

您的正则表达式不正确，并且不会发生内部替换。即$mac不会被替换，因为它在括号内。

expect {
    -re "\\d+\\s+$mac\\s+(dynamic|static)\\s+\\S+\\s+(\\S+)" { set interface $expect_out(2,string); # Add your further code}
}

期待脚本正则表达式不起作用

1 个答案: