PowerGREP is a powerful grep tool for quickly searching through large numbers of text and binary files, such as software source code, letters and correspondence, server or system logs, reference texts, historic archives, etc. to quickly find exactly what you are looking for. PowerGREP can also perform complex text and binary replacement operations for easy maintenance of web sites, software source code, reports, etc. You can search for plain text, or use powerful Perl-compatible regular expressions.