topic How to run multiple commands using expect? in Operating System - Linux

How to run multiple commands using expect?

hpmuru — Wed, 06 Jun 2012 17:02:13 GMT

Hi Gurus,

I am in process of creating a script to get multiple commands o/p from some set of servers and collecting its output in a single file.

My below commands works fine..

/usr/bin/expect -c "spawn ssh uname@hostname "'head /etc/hosts'" ; expect "'password:'" ; send "usr-passwd" ; interact "

but not this one..

/usr/bin/expect -c "spawn ssh uname@hostname "'head /etc/hosts; uname -a'" ; expect "'password:'" ; send "usr-passwd" ; interact "

this is because expect splits commands due to semicolon added between them. Is there any escape character which can be used here to fix this??

Regards,

Murugan

Re: How to run multiple commands using expect?

Dennis Handly — Thu, 07 Jun 2012 15:49:11 GMT

>a script to get multiple commands output

Any reason you don't create a script that does the multiple commands and then run expect on that script?

Re: How to run multiple commands using expect?

hpmuru — Fri, 08 Jun 2012 05:20:39 GMT

Hello Dennis Handly,

Thank you, for your response.

My goal is to get multiple commands output using a single/simple script from different servers. Also, I would like to give the username and password in the same script itself. Password less login using ssh-key or other solutuions doesn't satisfy my requirement.