In most cases that's part of a full-text search facility.  In Ubuntu and derivatives (like Mint) it's part of the core system.

The usage is as follows (for example):
search for "Some Text String" -c -s
which would provide file names where you may find the text string you were looking for.

In debian derivatives the following command will tell you what package installed a particular file:
dpkg -S "filename"  (e.g. dpkg -S /usr/local/bin/search)



On 06/27/2013 03:37 PM, joe@actionline.com wrote:
> What is this and how might one use it?
> 
> I found this on my system. There is no man page for it.
> A google search turns up nothing (that makes sense to me).
> I've tried several arguments and options, but each one
> just starts a long string of directory/filenames that I
> don't understand.
> 
> 
> 
> 
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