如何通過使用tcl-expect將遠程主機上的文件複製到本地主機

Question

這裏我使用telnet在遠程主機上建立一個連接，然後在遠程主機上創建一個名爲「file.txt」的文件並存儲結果在file.txt中執行「ls」命令。現在我需要將文件發送到本地主機。我不知道該怎麼做。任何知道它的人都會幫助我。

#!/usr/local/bin/expect 
spawn telnet <machine ip> 
expect "login:" 
send "<username>\n" 
expect "Password:" 
send "<password>\n" 
expect "bash" 
send " ls > file.txt\r " 
expect "bash" 
send " cat file.txt \r " 
expect "bash" 
send " command for copying file to the localhost computer\r" 
expect "bash" 
send "exit\r" 

Answer 1

你強烈推薦使用ssh和scp這個任務。

#!/usr/local/bin/expect 

### Factor these out 
set user <username> 
set pass <password> 
set host <machineIP> 

### Get the file list into a file remotely 
spawn ssh $user@$host sh -c {ls -1 >file.txt} 
expect { 
    "Password:" { 
     send "$pass\r" 
     exp_continue 
    } 
    eof { 
     close 
    } 
} 
### Copy the file to the local machine 
spawn scp $user@${host}:file.txt . 
expect { 
    "Password:" { 
     send "$pass\r" 
     exp_continue 
    } 
    eof { 
     close 
    } 
}