>Usage
The printenv command in Unix is used to display the values of environment variables.
When run without arguments, it lists all environment variables. If you specify a variable name, it shows the value of that specific variable.
The printenv command is limited in terms of options, as its primary function is to display environment variables.
>Synopsis
>Examples
>printenv
Using printenv without any arguments lists all environment variables and their values.
Example:
-zsh
> printenv
USER=johndoe
HOME=/home/johndoe
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:
/sbin:/bin
SHELL=/bin/bash
LANG=en_US.UTF-8
LOGNAME=johndoe
TERM=xterm-256color
PWD=/home/johndoe/projects
EDITOR=vim
>printenv [VARIABLE]
Prints the value of a specific environment variable if [VARIABLE] is specified, otherwise printenv will produce no output for that variable.
Example:
-zsh
> printenv LANG
en_US.UTF-8
>printenv [VAR1] [VAR2]
Prints multiple specific environment variables if [VAR1] and [VAR2] are specified, otherwise printenv will produce no output for those variable.