Less - Less extends CSS with dynamic behavior such as variables, mixins, operations and functions. Less runs on both the server-side (with Node. js and Rhino) or client-side (modern browsers only).
dnGREP - dnGrep allows you to search across files with easy-to-read results.
more - More is a filter for paging through text one screenful at a time.
AstroGrep - AstroGrep is A Microsoft Windows GUI File Searching (grep) utility.
Bat - A cat(1) clone with wings.
PowerGREP - Quickly search through large numbers of files on your PC or network using powerful text patterns to find exactly the information you want. Search and replace with plain text or regular expressions to maintain web sites, source code, reports, ...