Create a batch file or shortcut to PuTTY (ssh) that opens a session and runs a command

Use the commandline PuTTY version plink.exe to initate a SSH connection to a host of choice. Use the -ssh switch to connect with SSH. With the -m switch you can include a command file:

plink.exe -ssh host1 -m C:\path\to\commands.txt

You can download plink.exe from here.

Last step would be to create a shortcut including plink.exe with the desired parameters.

Check out the Plink documentation for other various parameters: Plink.exe documentation

To automate a command execution, use Plink (from PuTTY package), not PuTTY itself.

Plink accepts a command on its command line:

plink.exe user@host command

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If you want to keep using PuTTY, you can use -m switch to specify a command file (Plink supports the -m switch too).

You can use putty configurations to achieve this.

Load putty and configure your session.

Enter the remote command that you'd like to run here:

Then, before clicking "Open", go back to the "Session" tab (at the top), and save your configuration.

Now, create a shortcut to putty.exe, adding the -load flag, for example:

%PATH_TO_PUTTY%\putty.exe -load my_config

Now, you can just click on the shortcut and it will load your session, executing your command.