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Linux Command to view environment variables

Source: Internet
Author: User
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Linux Command to view the Environment Variable-Linux general technology-Linux technology and application information, the following is a detailed description. I can see in the document four commands: which, man, at, env. which command outputs the variable name and variable value?

What are the differences between these commands?

Env can also see detailed Environment Variables
Which [command] is used to view the command path.
Man is help
At is used to schedule the system to execute a task at a certain time.

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