debian/control contains basic information about the packages we are building. Source: grep Section: base Priority: required Maintainer: Wichert Akkerman Standards-Version: 3.1.0 Package: grep Architecture: any Essential: yes Pre-Depends: ${shlibs:Pre-Depends} Conflicts: rgrep Provides: rgrep Description: GNU grep, egrep and fgrep. The GNU family of grep utilities may be the "fastest grep in the west". GNU grep is based on a fast lazy-state deterministic matcher (about twice as fast as stock Unix egrep) hybridized with a Boyer-Moore-Gosper search for a fixed string that eliminates impossible text from being ronsidered by the full regexp matcher without necessarily having to look at every character. The result is typically many times faster than Unix grep or egrep. (Regular expressions containing backreferencing will run more slowly, however.)