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我的代码：

spawn telnet $ip
expect "Password: "
exp_send "$paswd\r"
expect "Router>"
exp_send "en\r"
expect "Password: "
exp_send "$paswd\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "conf t\r"
expect "Router(config)#"
exp_send "\r"
expect "Router(config)#"
exp_send "ip ftp username name\r"
expect "Router(config)#"
exp_send "ip ftp password name123\r"
expect "Router(config)#"
exp_send "end"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "\r"
expect "Router#"
exp_send "copy ftp: filename\r"
expect "Address or name of remote host []? "
exp_send "$remote_ip\r"
expect "Source filename []? "
exp_send "router-config1\r"
expect "Destination filename []? "
exp_send "/new/location\r"
expect "Router#"

输出：

Router(config)#ip ftp username name
Router(config)#ip ftp password name123
Router(config)#endTcpping succeeded for port 443.
Tcpping succeeded for port 443.

Router#
Router#
Router#copy ftp: filename
Address or name of remote host []? Tcpping succeeded for port 443.
Tcpping succeeded for port 443.
$remote_ip
Source filename []? Tcpping succeeded for port 443.
Tcpping succeeded for port 443.
filename
Destination filename [filename]? Tcpping succeeded for port 443.
Tcpping succeeded for port 443.
/new/location
%Warning:There is a file already existing with this name
Do you want to over write? [confirm]Tcpping succeeded for port 443.
Tcpping succeeded for port 443.

Accessing ftp://$remote_ip//filename...
%Error opening ftp://$remote_ip//router-config (No such file or directory)
Router#copy t1_working startup-config
Destination filename [startup-config]? Tcpping succeeded for port 443.

有人可以告诉我如何捕捉 NO SUCH FILENAME 的异常吗？

4

1 回答 1

1

您可以让 Expect 一次等待两个（或更多）不同的字符串。

expect {
    "Thing for success" {
         # little script to handle the success case
         puts "hooray, going to do next step"
    }
    "Thing for failure 1" {
         puts "oh dear; didn't work"
         exit 1
    }
    "Thing for failure 2" {
         send "something to try to recover\r"
         exp_continue; # Try this expect again
    }
}

当然，您需要选择合适的东西来匹配（检查使用 glob 或正则表达式匹配）并且您需要弄清楚如何实际处理错误情况（您的选择通常是“忽略”的变体、“失败”和“尝试恢复”）。还可以考虑对超时进行显式处理。

于 2013-04-30T08:38:01.407 回答