grep - definitie. Wat is grep
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Wat (wie) is grep - definitie

UNIX COMMAND LINE UTILITY
GREP; Fgrep; Egrep; Grep (Unix); Grepping; Rgrep; Globally search a regular expression and print; FGREP (command); FGREP; G/re/p; Pcregrep

Grep         
To search for something in background physical noise (ie, files, pile of unwashed clothes, desk detritus) compulsively for something that you know is there but can't remember where you put it.
For example, car keys, passport, prophylactic, security swipe card, underpants, cigarettes.
First seen in a breathless letter to Computer Business Review from a former Microsoft contractor spilling the beans on an adviser to M$ Chief Screaming Officer Steve Ballmer.
So there I was in London Grepping for a cab, 'cos I was late for a meeting...
grep         
<tool, information science> <tool> A Unix command for searching files for lines matching a given {regular expression} (RE). Named after the qed/ed editor subcommand "g/re/p", where re stands for a regular expression, to Globally search for the Regular Expression and Print the lines containing matches to it. There are two other variants, fgrep which searches only for fixed strings and egrep which accepts extended REs but is usually the fastest of the three. Used by extension to mean "to look for something by pattern". When browsing through a large set of files, one may speak of "grepping around". "Grep the bulletin board for the system backup schedule, would you?" See also vgrep. [Jargon File]
GREP         
Global Regular Expression Print (Reference: Unix)

Wikipedia

Grep

grep is a command-line utility for searching plain-text data sets for lines that match a regular expression. Its name comes from the ed command g/re/p (globally search for a regular expression and print matching lines), which has the same effect. grep was originally developed for the Unix operating system, but later available for all Unix-like systems and some others such as OS-9.