Linux – Using ‘expect’ to automatically send in password

bashexpectlinuxscpshell

I am trying to copy a file from my remote server to my local. Here's my script to run it, by using 'expect' to automaticlally send in password

scp user@host:/folder/myFile ./
expect "Password: "
send "myPassword"

When I run this, it still prompts for "Password", what is wrong?

Best Solution

This expect script does the job (thanks to 'zedwood' )

#!/usr/bin/expect -f
set filename [lindex $argv 0]
set timeout -1
spawn scp $filename myusername@192.168.1.123:/home/myusername/
set pass "mypassword"
expect {
        password: {send "$pass\r" ; exp_continue}
        eof exit
}

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Python – How to scp in Python

Try the Python scp module for Paramiko. It's very easy to use. See the following example:

import paramiko
from scp import SCPClient

def createSSHClient(server, port, user, password):
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(server, port, user, password)
    return client

ssh = createSSHClient(server, port, user, password)
scp = SCPClient(ssh.get_transport())

Then call scp.get() or scp.put() to do SCP operations.

(SCPClient code)

Linux – Pseudo-terminal will not be allocated because stdin is not a terminal

Try ssh -t -t(or ssh -tt for short) to force pseudo-tty allocation even if stdin isn't a terminal.

From ssh manpage:

-T      Disable pseudo-tty allocation.

-t      Force pseudo-tty allocation.  This can be used to execute arbitrary 
        screen-based programs on a remote machine, which can be very useful,
        e.g. when implementing menu services.  Multiple -t options force tty
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Best Solution

Related Solutions

Python – How to scp in Python

Linux – Pseudo-terminal will not be allocated because stdin is not a terminal

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