The $$ variable is the process id. It will be consistent through the run of the script. Each invocation of the script will get a different process id.
Brant Evans On Mon, Feb 16, 2009 at 10:41 PM, Nathan England <[email protected]>wrote: > > Hello Hello, > > I am looking for an explanation of what '$$' is in bash. > I can create a file or a directory, assign it to variables, but how much > can I > do before it changes, or what causes it to change? > > What exactly does it mean? Searching google for '$$' returns nothing > useful. > > Nathan > --------------------------------------------------- > PLUG-discuss mailing list - [email protected] > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >
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