ssh connect and commands programmatically

Question

I'm trying to make a script connecting via an SSH connection to a server and executing some commands. The first part works:

#!/usr/bin/expect -f
spawn ssh address
expect "password:"
send "password\r"
interact

but after that I want to execute some more commands, e.g cd to directory, launch some more scripts etc. Is there any way to implement these things ?

RavinderSingh13 · Accepted Answer · 2017-07-16 14:14:32Z

1

try following:

#!/usr/bin/expect
set login "any_user"
set addr "some_address"
set pw "any_pwd"

spawn ssh -t $login@$addr
expect "$login@$addr\'s password:"
send "$pw\r"
expect "~" ; # put here string from your server prompt
send "mkdir some_dir\r"
interact

This is one of the command, you could try other commands like cd, any other scripts too in it and let us know if any queries.

answered Jul 16, 2017 at 14:14

RavinderSingh13

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1 Comment

Anton Over a year ago

yes, this works, thanks a lot! As I understand, I need to set expect command each time I want to send anything

Michael Käfer · Accepted Answer · 2023-09-15 09:51:15Z

0

There are 2 easier approaches than using spawn, expect, interact, etc.:

The easiest approach is to execute a command with ssh. For example listing directories of your remote with ls:

# Either enter the password in a prompt...
ssh [email protected] ls

# ...or use sshpass to avoid the password prompt
SSHPASS='XXXXX' sshpass -e ssh [email protected] ls

Create a SSH tunnel. There are a lot of tutorials in the web on how to do this in different ways.

answered Sep 15, 2023 at 9:51

Michael Käfer

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