Grep

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Export map as:

Research this topic

Explore the main themes, entities and connections around Grep. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Implementations

Version 7 Unix Alfred Aho Aho–Corasick string matching algorithm POSIX Pgrep

23 related topics

History

Ken Thompson Doug McIlroy PDP-11 Assembly language Lee E. McMahon

9 related topics

Usage as a verb

Oxford English Dictionary Dysphemism

2 related topics

Overview

Command-line Text Regular expression Ed Unix

10 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developer: AT&T Bell Laboratories
Operating system: Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i
Original author: Ken Thompson
Release: November 1973; 52 years ago (1973-11)
Type: Command
Written in: C

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Command-line Command line interface
Text Plain text
Regular expression
Ed Ed (text editor)
Unix
Unix-like
OS-9
Shell Shell (computing)
Command Command (computing)
Runs Execution (computing)

History

Implementations

Usage as a verb

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Nodes49

Edges48

Triples64

Avg. degree1.96

Density0.040816

Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Grep

Top relations

related to history · 16

Grep → Before, Doug McIlroy, He, Ken Thompson, Lee, McIlroy, McMahon, PDP-11, Responding, Stating, The, The Federalist Papers, Thompson, Thompson's, Unix, Version

related to Implementations · 14

Grep → Aho, Alfred Aho, Binaries, Commandsegrepandfgrep, Corasick, Early, Ken Thompson's, Other, POSIX, Theegrepvariant, Thefgrepvariant, Thepgreputility, Unix, Version

related to External links · 8

Grep → Command Grep, GNU, GNU Grep, Inferno General, Manual, Plan, Programmer's Manual, Volume

related to agrep · 7

Grep → It, MS-DOS, OS/2, Sun Wu, Udi Manber, Unix, Windows

see also · 6

Grep → DOS/Windows, Free, Moore, POSIX, Unix, Windows

related to Usage as a verb · 3

Grep → In December, Oxford English Dictionary Online, You

Developer · 1

Grep → AT&T Bell Laboratories

Operating system · 1

Grep → Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i

Original author · 1

Grep → Ken Thompson

Release · 1

Grep → November 1973; 52 years ago (1973-11)

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

unix regular expression command search also thompson text version utility operating agrep windows systems name system ed unix-like os-9 program

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
Grep	Developer	AT&T Bell Laboratories	1.00	infobox
Grep	Operating system	Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i	1.00	infobox
Grep	Original author	Ken Thompson	1.00	infobox
Grep	Release	November 1973; 52 years ago (1973-11)	1.00	infobox
Grep	Type	Command	1.00	infobox
Grep	Written in	C	1.00	infobox
Grep	is a	command-line utility for searching text for lines that match a regular expression	0.90	text
OS-9	instance of	and is commonly available on Unix-like and some other systems	0.80	text
grep	instance of	using tools	0.80	text
than one could with a hard copy	instance of	using tools	0.80	text
Grep	related to agrep	Udi Manber	0.60	section
Grep	related to agrep	Sun Wu	0.60	section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

Connections between topic areas Semantic bridges

Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

Min side: 3