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Grep is a program that's been around on unix / linux and apples machies for years. Traditionally it has been a command line based tool used primarily by technical people. But now we have brought the power of the tool with an easy to use interface within reach of everyone.
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It is a little bit like the file and folder search feature available on windows but the power when searching for text within files is much more powerful. Also, rather that just showing you which files contain the seach you ran, grep also shows you the lines within those files so you can see that phone number, or address or syntax without actually having to open up the file your results were in.
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So how is it more powerful?
Well, for example, rather than just being able to search for one word in a file you can search for lines within the files that contain that first word but also contain another word somewhere else on the line (but not necessarily right next to the first word).
This type of search would be done by entering a search string such as "bob.*Alaska".
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Run multiple searches at the same time.
Abort a search part way through.
Search for normal text or by regular expression.
Search just one file or many.
Search one directory or all subdirectories too.
Works on all versions of Windows including, "ME", XP, 2000, 2003 and vista.
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