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This article will explain in detail about using linux's printenv command to display the values of specified environment variables. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The printenv command displays the value of the specified environment variable, and if no variable is specified, prints out the names and values of all variables. Through the printenv command, we can see the current shell, environment variables for shell, and other common configurations.

Syntax format: printenv [parameters] [variables]

Common parameters:

Reference example

Show all environment variables:

[root@linuxcool ~] # printenv

Displays the value of the environment variable LANG:

[root@linuxcool ~] # printenv LANG

Display this help and exit:

[root@linuxcool] # printenv-- help

Display version information and exit:

[root@linuxcool] # printenv-- version

Displays the value of the environment variable LANG, ending each output line with a null character instead of a new line character:

[root@linuxcool ~] # printenv-- null LANG on using the printenv command of linux to display the value of the specified environment variable is shared here. I hope the above content can be helpful to you and learn more. If you think the article is good, you can share it for more people to see.

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