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037-the-printenv-command.md

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The printenv command

The printenv prints the values of the specified environment VARIABLE(s). If no VARIABLE is specified, print name and value pairs for them all.

Examples:

  1. Display the values of all environment variables.
printenv
  1. Display the location of the current user's home directory.
printenv HOME
  1. To use the --null command line option as the terminating character between output entries.
printenv --null SHELL HOME

NOTE: By default, the printenv command uses newline as the terminating character between output entries.

Syntax:

printenv [OPTION]... PATTERN...

Additional Flags and their Functionalities:

Short Flag Long Flag Description
-0 --null End each output line with 0 byte rather than newline.
--help - Display a help message, and exit.