If you are working in the Linux environment you will have come across grep – a useful tool to find regular expressions. In windows you too can enjoy this power with Windows Grep (strangely enough).
The developers say
Windows Grep is a tool for searching files for text strings that you specify. Although Windows and many other programs have file searching capabilities built-in, none can match the power and versatility of Windows Grep.
The program combines the power and flexibility of traditional command line grep utilities available on DOS, UNIX and other platforms with the ease of use of Microsoft Windows.
In addition to searching, Windows Grep also performs global replacing in your files, with complete safety.
Windows Grep is designed for searching plain-ASCII text files, such as program source, HTML, RTF and batch files, but it can also search binary files such as word processor documents, databases, spreadsheets and executables.
Windows Grep runs on Windows 98, 2000, XP, Vista and Windows 7
You can get the tool here
I have an immediate need for the app – some heavy duty data wrangling coming up