Linux
期望腳本在 linux 機器上不起作用
當我必須對下面的一台機器執行 ssh 時,命令是命令,如果我輸入“是”,它正在工作並且能夠按如下方式登錄。
ssh root@192.168.1.177 The authenticity of host '192.168.1.177 (192.168.1.177)' can't be established. ED25519 key fingerprint is SHA256:KqI6oKKY1JOH+OJZzCYObPdkMVNNwhkaMGTYgx/fDxE. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added '192.168.1.177' (ED25519) to the list of known hosts. localhost ~ #
我正在通過期望腳本嘗試同樣的事情,它會拋出如下錯誤。
./expectscriptssh.sh 192.168.1.177 spawn ssh root@192.168.1.177 invalid command name "fingerprint" while executing "fingerprint" invoked from within "expect "Are you sure you want to continue connecting (yes/no/[fingerprint])? "" (file "./expectscriptssh.sh" line 4).
以下是我的期望腳本:
#!/usr/bin/expect -f set VAR [lindex $argv 1] spawn ssh root@$argv expect "Are you sure you want to continue connecting (yes/no/[fingerprint])? " send "yes\r"
任何機構都可以建議,我該如何解決這個問題。
在 TCL 中,
$$ $$pair 是對執行命令替換的呼叫,就像 $( ) 在 POSIX shell 中一樣。 如果你
autoexpect
有空,那麼編寫期望腳本的最簡單方法是使用 autoexpect 來觀察你做某事,然後編輯生成的腳本以刪除不需要的東西。您可以將“…”更改為 {…} 以避免對字元串進行評估。
#!/usr/bin/expect -f set VAR [lindex $argv 1] spawn ssh root@$argv expect {Are you sure you want to continue connecting (yes/no/[fingerprint])? } send "yes\r"
通常你想要更多的東西,讓提示是可選的,例如
#!/usr/bin/expect -f set VAR [lindex $argv 1] spawn ssh root@$argv expect { {Are you sure you want to continue connecting (yes/no/[fingerprint])? } { exp_send "yes\r" exp_continue } {Password:} {send "secret\r"} {# } }