Perl $ENV hash

kingjamesid has asked for the wisdom of the Perl Monks concerning the following question:

Hello-

I understand how to pull out (a particular) ENV variable/value pairs from my machine, but i need to get the same pair from a list of machines. For e.g. I have a system var "T_VERSION" in all machines I support. about 100 of them. i am trying to pull out the values of this var from all 100 machines and export to a txt file.

I am not sure, how to get to other's ENV hash and get it. Any idea?

Comment on Perl $ENV hash

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Re: Perl $ENV hash by Corion (Patriarch) on Apr 20, 2010 at 13:56 UTC
It's quite simple. On Windows, if you have Domain Administrator privileges, you can use WMI to query each machine. Otherwise, you'll have to log into each machine and query the environment information there.	[reply]
Re^2: Perl $ENV hash by kingjamesid (Acolyte) on Apr 20, 2010 at 14:08 UTC
corion- I have domain admin privileges. how can I makes sure, i have WMIC libraries installed. Is this defauly? I ran perldoc WIN32::WMI but it said no docs found. so I am assuming lib not loaded. can you help me get started on where to look for the lib or if its already installed. THanks.	[reply]
Re^3: Perl $ENV hash by Corion (Patriarch) on Apr 20, 2010 at 14:10 UTC
If you want to use DBD::WMI, you have to install it. See A guide to installing modules for Win32. Alternatively, finding out whether `wmic` is installed on your machine is a matter of trying to run it from the command line.	[reply] [d/l]
Re^4: Perl $ENV hash by kingjamesid (Acolyte) on Apr 20, 2010 at 19:02 UTC
Re^5: Perl $ENV hash by Corion (Patriarch) on Apr 20, 2010 at 19:22 UTC
Some notes below your chosen depth have not been shown here
Re: Perl $ENV hash by Anonymous Monk on Apr 20, 2010 at 13:52 UTC
log into said machine (ssh, whatever), set up env (load profile, whatever), call printenv and send the results back to your machine	[reply]
Re: Perl $ENV hash by roboticus (Chancellor) on Apr 20, 2010 at 17:03 UTC
Kingjamesid Please note that the environment isn't machine-specific--rather it's account-specific. So you could have any number of T_VERSION values for a machine. ...roboticus	[reply]
Re: Perl $ENV hash by choroba (Cardinal) on Apr 20, 2010 at 13:52 UTC
What method do you use to connect to the machines?	[reply]