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Everything about Command substitution
Feature of Unix shells and some programming languages
In computing, command substitution is a facility that allows a command to be run and its output to be pasted back on the command line as arguments to another command. Command substitution first appeared in the Bourne shell, introduced with Version 7 Unix in 1979, and has remained a characteristic of all later Unix shells. The feature has since been adopted in other programming languages as well, including Perl, PHP, Ruby and Microsoft's Powershell under Windows. It also appears in Microsoft's CMD.EXE in the FOR command and the ( ) command. Wikipedia →
🧠Start here: a 6-step reading path
- Read the overview: Command substitutionA 5-minute orientation
- Pick up a classic book: Automate the Boring Stuff with PythonThe most-reprinted book on the subject
- Read the landmark paper: Zimbabwe’s Special Maize Programme for the Import Substitution (Command Agriculture) Scheme: A Hit-and-Miss AffairCited 10 times
- Go sideways: C shellA closely related topic
- Go sideways: Bourne shellA closely related topic
đź“– Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
đź“š Books worth reading
Automate the Boring Stuff with PythonAl Sweigart · 2015
Learning the bash ShellCameron Newham, Bill Rosenblatt · 1995
The prince of the marshesRory Stewart · 2006
The Life and Legends of Saint Francis of AssisiCandide Chalippe, Hilarion Duerk · 1918
MartyrsFrançois-René de Chateaubriand · 1812
The Conspirators HierarchyJohn Coleman · 1992
The UNIX operating systemChristian, Kaare, Kaare Christian · 1983
The life and letters of St. Francis XavierHenry James Coleridge · 1872
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
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