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Echo (command)

echo is a shell command that writes input text to standard output. It is available in many operating system and shells. It is often used in a shell script to log status, provide feedback to the user and for debugging. For an interactive session, output by default displays on the terminal screen, but output can be re-directed to a file or piped to another…

History & Standards

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

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Key facts & relationships

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Developers
Various open-source and commercial developers
Operating system
Multics, Unix, Unix-like, V, Plan 9, Inferno, FLEX, TRIPOS, AmigaDOS, Z80-RIO, OS-9, DOS, MSX-DOS, Panos, FlexOS, SISNE plus, OS/2, Windows, ReactOS, MPE/iX, KolibriOS, SymbOS
Original authors
Douglas McIlroy (AT&T Bell Laboratories)
Platform
Cross-platform
Type
Command

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Advanced semantic analysis

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Map overview Semantic statistics

Echo (command)

Nodes52
Edges51
Triples9
Avg. degree1.96
Density0.038462
Components1

How this topic connects Entity context

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Echo (command)

Top relations

Developers · 1
Echo (command) → Various open-source and commercial developers
Operating system · 1
Echo (command) → Multics, Unix, Unix-like, V, Plan 9, Inferno, FLEX, TRIPOS, AmigaDOS, Z80-RIO, OS-9, DOS, MSX-DOS, Panos, FlexOS, SISNE plus, OS/2, Windows, ReactOS, MPE/iX, KolibriOS, SymbOS
Original authors · 1
Echo (command) → Douglas McIlroy (AT&T Bell Laboratories)
Platform · 1
Echo (command) → Cross-platform
Type · 1
Echo (command) → Command

Important terminology Word statistics

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Important terminology

unix command shells shell system echo commands output sequences default escape implementations operating multics dos windows available edition many isbn

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Echo (command)DevelopersVarious open-source and commercial developers1.00infobox
Echo (command)Operating systemMultics, Unix, Unix-like, V, Plan 9, Inferno, FLEX, TRIPOS, AmigaDOS, Z80-RIO, OS-9, DOS, MSX-DOS, Panos, FlexOS, SISNE plus, OS/2, Windows, ReactOS, MPE/iX, KolibriOS, SymbOS1.00infobox
Echo (command)Original authorsDouglas McIlroy (AT&T Bell Laboratories)1.00infobox
Echo (command)PlatformCross-platform1.00infobox
Echo (command)TypeCommand1.00infobox
the builtinechocommand of Bash or zshinstance ofand that behaviour was copied by a few other implementations0.80text
GNUecho.On MS-DOSinstance ofand that behaviour was copied by a few other implementations0.80text
the command is available in versions 2instance ofand that behaviour was copied by a few other implementations0.80text
laterinstance ofand that behaviour was copied by a few other implementations0.80text

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    Min side: 3
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