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Research draft

command

vr.tr.command · INF.KNW

Let an agent explain computer commands and their structure and kinds, support finding and using commands safely, describe shells and command-line conventions, and separate this sense from commands in other contexts.

Thing Registry Information and virtual systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent explain computer commands and their structure and kinds, support finding and using commands safely, describe shells and command-line conventions, and separate this sense from commands in other contexts.

An instruction given to a computer program, operating system or device to perform a specific action, typically typed at a command line or issued through a script, including internal commands built into a shell or command interpreter, external commands implemented as separate programs, standard utilities of Unix-like systems, directives in configuration and markup, and commands in applications; commands have names, arguments and options, and their conventions are documented in manuals.

What it is for: Instructions to programs and systems.

It can be explain structure and kinds; support finding and using commands; describe shells and conventions; separate other senses.

Distinguishing features

Named instruction

Arguments and options

Internal or external

Documented conventions

What it looks like

Text typed at a prompt or written in scripts.

How it is recognised

Instruction to a program or system

Name, arguments, options

A programming statement is part of source code; a military command is an order

Related models

is a kind of - category

command

is related to - utilities distributed as free software

free software

is related to - early command-line systems

microcomputer

is related to - errors in command use

software bug

In practice

Families and kinds

shell built-in commands

external commands and utilities

standard Unix utilities

directives in configuration and markup

application and device commands

Standards and regulation

POSIX and shell standards

Documentation conventions such as manual pages

No regulation of the concept

Failure modes and hazards

Destructive commands run by mistake

Confusing commands across systems

Running untrusted commands

Also called

type commandCMD.EXE commandstandard UNIX utility or commandinternal commanddirectiveexternal commandfindconstant-time instructionAI promptcheat codeWindows Terminal color combinationtype conversionsubcommanduser interface commandcommitmachine instructionnoclip modexargstelecommandconstraintBlind writeUndobrowser commanddata exportdata importupdatedbG-codefile savinglocateyieldSCSI commandinstructiontrim commandGNU Emacs commandmeta refreshinclude directivezero-shot promptfew-shot promptchain-of-thought prompttype cast in Java

+34

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.command-cognition

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Understand What commands are.

Computing.

Structure

Structure and kinds.

Structure

Structure.

  1. How are commands structured with names, arguments and options, and how do internal, external and utility commands differ? definition
  2. Is a computer command or another sense meant? boundary

Shells

Shells and interpreters.

Shells

Shells.

  1. How do shells and command interpreters such as Unix shells and Windows command processors execute commands? definition
  2. Which entry fits a specific shell? action
Use Using commands.

Practice.

Find

Finding the right command.

Find

Finding.

  1. Which command performs this task on this system, and how is its documentation read? action
  2. Which entry fits a specific command? action

Safety

Safe use.

Safety

Safety.

  1. How can destructive or untrusted commands be avoided, and what precautions apply? action
  2. Could this command cause data loss, requiring confirmation? boundary
Script Scripting and automation.

Engineering.

Scripts

Scripts.

Scripts

Scripts.

  1. How are commands combined in scripts, pipelines and automation? action
  2. Which entry fits shell scripting? action

Portability

Portability.

Portability

Portability.

  1. How do commands differ across operating systems, and how is portability achieved? provenance
  2. Which entry fits POSIX? action
Learn History and teaching.

Education.

History

History.

History

History.

  1. How did command-line interfaces develop from early systems to modern shells? provenance
  2. Which references are standard? provenance

Teach

Teaching.

Teach

Teaching.

  1. How can command-line skills be taught to beginners? action
  2. Which misconceptions arise? provenance

What the second pass must settle

  • Should shells be a separate entry?
  • How should command references be linked?
  • How should safety practices be documented?
Draft as JSON