Command Substitution
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What is Command Substitution?
Command substitution allows you to use the output of a command as an argument to another command. It essentially captures the standard output of a command and inserts it into the command line of another command, enabling you to dynamically generate arguments or values based on the results of other commands. This is useful for tasks like assigning the output of a command to a variable, using the output as input to another command, or constructing complex command lines.
Free resources to learn Command Substitution
More in stage 8: Bash Alias
Command Substitution: common questions
Can I learn Command Substitution in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Command Substitution in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Command Substitution tutorial for beginners?
It is lesson 25 of 166 in the free Shell / Bash roadmap, in stage 8, Bash Alias. If you are new to Shell / Bash, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.