CODEWITHSUNDEEP
command-lineplink
Sam Doxy
Sam Doxy

Reputation: 259

Using Plink to execute command within another command/shell

My question is regarding the way the file ("-m" switch) is used by Plink.

My command is:

plink.exe -ssh [email protected] -pw p@ss30rd -m commandfile.txt

I'm trying to connect to a switch and execute these 3 commands:

system-view
user-interface vty 0
screen-length 200

The issue here, is that each command depends on it's predecessor. In other word, executing the command system-view gives access to a new level or a context where the second command user-interface vty 0 can be valid and executed and same thing for the third command in which is only valid (and available) only if user-interface vty 0 is executed

Is there a way or a workaround that we can achieve this using Plink?

My goal here is to put the "Plink" command line in a script and try to analyse the output

Thanks in advance

Upvotes: 1

Views: 2416

Answers (1)

Martin Prikryl
Martin Prikryl

Reputation: 202262

If you specify multiple commands using the -m switch, they are executed one after another. While you (if I understand you correctly) want to execute the commands within each other. That's not possible with the -m switch.

What you can do, is to feed the commands to Plink using an input redirection. This way, Plink behaves, just as, if you typed those commands.

(
    echo system-view
    echo user-interface vty 0
    echo screen-length 200
) | plink.exe -ssh [email protected] -pw p@ss30rd

Note that by default, with the -m switch, Plink does not allocate a pseudo terminal, while with the input redirection, it does. So the behavior is not identical. You can use the -t/-T switches to override that.

Upvotes: 1

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