Linux Fundamentals - How Shell Understands That You Have Entered a Command?

This video tutorial explains how Linux shell commands are recognized and executed. It covers the role of the PATH variable in locating executable files, differentiates between regular and executable files, and demonstrates how to use commands like 'ls' and 'set'. The tutorial also introduces the structure of commands and how to access help for specific commands.

What is the difference between the commands CAD and CD in the Linux shell?

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Explain how the Linux shell recognizes commands like LS and CD.

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What does the command 'echo $PATH' return and what does it signify?

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Describe the significance of executable files in the context of the PATH variable.

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How does the Linux shell execute a specific command?

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