Use and display::Environment variable
Variable::anchor Command::windows DR-DOS::under COMMAND::current Ordner::schulz System::returns
Use and display The variables can be used both in scripts and on the command line. They are usually referenced by putting special symbols in front of or around the variable name. For instance, to display the user home directory, in most scripting environments, the user has to type:
<source lang="bash"> echo $HOME </source>
In DOS, OS/2 and Windows command-line interpreters such as
cmd.exe, the user has to type this:
<source lang="dos"> ECHO %HOME% </source>
In Windows PowerShell, the user has to type this:
<source lang="powershell"> Write-Output $env:HOMEPATH </source>
printenv display all environment variables and their values.
printenv can also be used to print a single variable by giving that variable name as the sole argument to the command.
Environment variable sections
Intro Details Use and display Assignment True environment variables Pseudo-environment variables Critics See also References External links
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