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What happens when you type this command?


The env command stands for "environment", and returns a list of the environment variables for the current user. Here, the env command returns a number of variables, including PATH, PWD, PS1, and HOME.

env | grep PATH

env | grep PATH is a command that displays the value of a single environment variable. Here the standard output of env is "piped" to the grep command. grep searches for the value of the variable PATH and outputs it to the terminal.


The commands and feature we've covered so far are commonly used to configure the environment.

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