Expr

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Research this topic

Explore the main themes, entities and connections around Expr. 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.

Example

Boolean expressions Exit status Bc Portable

4 related topics

Overview

Shell Command Expression Integer String

11 related topics

Key facts & relationships

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

Developers: Various open-source and commercial developers
Operating system: Unix, Unix-like, IBM i
Original authors: Dick Haight (AT&T Bell Laboratories)
Platform: Cross-platform
Release: 1979; 47 years ago (1979)
Type: Command

Topics to explore

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

Overview

Shell Shell (computing)
Command Command (computing)
Expression Expression (mathematics)
Integer
String String (computer science)
Regular expressions Regular expression
Unix v7 Version 7 Unix
POSIX
IBM i
Windows
UnxUtils

Example

Boolean expressions Boolean expression
Exit status
Bc Bc programming language
Portable Software portability

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

Nodes18

Edges17

Triples17

Avg. degree1.89

Density0.111111

Components1

How this topic connects Entity context

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

Expr

Top relations

related to External links · 6

Expr → GNU, Shell, The Open Groupexpr, The Single UNIX Specification, Utilities Reference, Version

related to Example · 5

Expr → Boolean, But, POSIX-compliant, The, This

Developers · 1

Expr → Various open-source and commercial developers

Operating system · 1

Expr → Unix, Unix-like, IBM i

Original authors · 1

Expr → Dick Haight (AT&T Bell Laboratories)

Platform · 1

Expr → Cross-platform

Release · 1

Expr → 1979; 47 years ago (1979)

Type · 1

Expr → Command

Important terminology Word statistics

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

Important terminology

expression command string shell example matching unix integer length evaluates regular operators etc include posix ibm outputs result expressions less

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
Expr	Developers	Various open-source and commercial developers	1.00	infobox
Expr	Operating system	Unix, Unix-like, IBM i	1.00	infobox
Expr	Original authors	Dick Haight (AT&T Bell Laboratories)	1.00	infobox
Expr	Platform	Cross-platform	1.00	infobox
Expr	Release	1979; 47 years ago (1979)	1.00	infobox
Expr	Type	Command	1.00	infobox
Expr	related to Example	The	0.60	section
Expr	related to Example	POSIX-compliant	0.60	section
Expr	related to Example	Boolean	0.60	section
Expr	related to Example	This	0.60	section
Expr	related to Example	But	0.60	section
Expr	related to External links	Shell	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