Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Cal (command): Overview & Quirks (1752)

cal is a shell command that prints a calendar as ASCII text for one or more months. With no command-line options, it prints a calendar for the current month.

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

Cal (command) topic overview

The analysis highlights Overview and Quirks (1752) as prominent areas in the source structure around Cal (command).

Related topics
22
Source areas
2
Connected nodes
26
Extracted relationships
8
Concept neighborhoods
19
Bridge connections
26

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 17 topics
Quirks (1752) · 5 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

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

Developer
Charles Dye
License
util-linux: BSD-4-Clause FreeDOS: Freeware / Source-available software Plan 9: MIT License
Operating system
Unix, Unix-like, Plan 9, Inferno, MSX-DOS, FreeDOS
Platform
Cross-platform
Release
November 3, 1971; 54 years ago (1971-11-03)
Type
Command

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Quirks (1752)

Sources

  • ISBN ISBN (identifier)

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.

How Cal (command) connects Entity context

The extracted context around Cal (command) shows recurring relationship patterns in the source. For example, Cal (command) → Charles Dye Another extracted example is Cal (command) → util-linux: BSD-4-Clause FreeDOS: Freeware / Source-available software Plan 9: MIT License. Use these groups to spot repeated connection types before inspecting the individual relationships.

Cal (command)

Top relations

Developer · 1
Cal (command) → Charles Dye
License · 1
Cal (command) → util-linux: BSD-4-Clause FreeDOS: Freeware / Source-available software Plan 9: MIT License
Operating system · 1
Cal (command) → Unix, Unix-like, Plan 9, Inferno, MSX-DOS, FreeDOS
Platform · 1
Cal (command) → Cross-platform
Release · 1
Cal (command) → November 3, 1971; 54 years ago (1971-11-03)
Type · 1
Cal (command) → Command
Written in · 1
Cal (command) → Plan 9: C FreeDOS: x86 assembly language

Important terminology

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

Important terminology

calendar unix month prints 1752 linux also cal plan inferno command unix-like msx-dos freedos following current gregorian available manual operating

Cal (command) relationships Subject–Predicate–Object triples

TTTA extracted 8 structured relationships around Cal (command). Examples in this analysis include Cal (command) → Developer → Charles Dye and Cal (command) → License → util-linux: BSD-4-Clause FreeDOS: Freeware / Source-available software Plan 9: MIT License. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Cal (command)DeveloperCharles Dye1.00infobox
Cal (command)Licenseutil-linux: BSD-4-Clause FreeDOS: Freeware / Source-available software Plan 9: MIT License1.00infobox
Cal (command)Operating systemUnix, Unix-like, Plan 9, Inferno, MSX-DOS, FreeDOS1.00infobox
Cal (command)PlatformCross-platform1.00infobox
Cal (command)ReleaseNovember 3, 1971; 54 years ago (1971-11-03)1.00infobox
Cal (command)TypeCommand1.00infobox
Cal (command)Written inPlan 9: C FreeDOS: x86 assembly language1.00infobox
Linuxinstance ofInferno and Unix-like systems0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Cal (command) bring nearby vocabulary together. In this analysis, examples include Plan, Commands and Days. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Cal (command)
    • Plan
    • Commands
    • Days
    • Cal
    • Command
    • Inferno
    • Manual
    • Months
    • Text
    • Linux
    • Prints
    • Also
  • cal (command)
    • Shell
    • Plan
    • Commands
    • Days
    • Cal
    • Command
    • Inferno
    • Manual
    • Months
    • Text
    • Linux
    • Prints
  • calendar
    • Prints
    • Month
    • Following
    • Current
    • Gregorian
    • Charles
    • Dye
    • Freedos
    • Also
    • Command
    • September
    • Ascii
  • gregorian calendar reform
    • Prints
    • Month
    • Following
    • Adoption
    • Days
    • Year
    • Current
    • Gregorian
    • Including
    • Manual
    • May
    • Reform
  • julian calendar
    • Prints
    • Month
    • Following
    • Current
    • Gregorian
    • Charles
    • Dye
    • Freedos
    • Also
    • Command
    • September
    • Ascii
  • plan 9
    • Inferno
    • Linux
    • Cal
    • Unix-like
    • Manual
    • Unix
    • Adoption
    • Charles
    • Commands
    • Days
    • Dye
    • Freedos
  • command
    • Shell
    • Cal
    • Months
    • Text
    • Prints
    • Charles
    • Commands
    • Dye
    • Freedos
    • Msx-dos
    • Operating
    • Unix-like
  • unix-like
    • Operating
    • Inferno
    • Linux
    • Plan
    • Unix
    • Available
    • Charles
    • Dye
    • Freedos
    • Including
    • Msx-dos
    • Specified

Connections between topic areas Semantic bridges

For Cal (command), one of the stronger structural bridges in this analysis connects Cal (command) with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Cal (command)Overview · splits 9 ⟂ 18
Cal (command)Quirks (1752) · splits 21 ⟂ 6

Map overview Semantic statistics

Cal (command)

Nodes27
Edges26
Triples8
Avg. degree1.93
Density0.074074
Components1

Source & methodology

TTTA analyzes the structure around Cal (command) to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Overview & Quirks (1752), including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Cal (command) · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.