List all environment variables from the command line
Is it possible to list all environment variables from a Windows' command prompt?
Something equivalent to PowerShell's gci env: (or ls env: or dir env:).
Just do:
SET
You can also do SET prefix to see all variables with names starting with prefix.
For example, if you want to read only derbydb from the environment variables, do the following:
set derby
...and you will get the following:
DERBY_HOME=c:\Users\amro-a\Desktop\db-derby-10.10.1.1-bin\db-derby-10.10.1.1-bin
Jon has the right answer, but to elaborate a little more with some syntactic sugar..
SET | more
enables you to see the variables one page at a time, rather than the whole lot, or
SET > output.txt
sends the output to a file output.txt which you can open in Notepad or whatever...
more existed on Windows, +1
To list all environment variables in PowerShell:
Get-ChildItem Env:
Or as suggested by user797717 to avoid output truncation:
Get-ChildItem Env: | Format-Table -Wrap -AutoSize
Source: Creating and Modifying Environment Variables (Windows PowerShell Tip of the Week)
for /f "tokens=1,2 delims==" ... which becomes very complicated ...
Get-ChildItem Env: | Format-Table -Wrap -AutoSize
gci env: instead Get-ChildItem Env:, easier to remember
Simply run set from cmd.
Displays, sets, or removes environment variables. Used without parameters, set displays the current environment settings.
You can use SET in cmd
To show the current variable, just SET is enough
To show certain variable such as 'PATH', use SET PATH.
For help, type set /?.
Non expanded variables -
User variables -
reg query HKEY_CURRENT_USER\Environment
System variables -
reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
Expanded variables -
In CMD -
SET
In Powershell -
dir env:
set by itself doesn't work with Github Actions, but the reg query does!
Don't lose time. Search for it in the registry:
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
returns less than the SET command.
REG_EXPAND_SZ keys. For example reg query "HKCU\Environment" shows me that my %TEMP% variable depends on the value of %USERPROFILE%, so if that value changes, so would the value for %TEMP%. In contrast, SET just returns "C:\Users\mpag\AppData\Local\Temp"
As mentioned in other answers, you can use set to list all the environment variables or use
set [environment_variable] to get a specific variable with its value.
set [environment_variable]= can be used to remove a variable from the workspace.
If you want to see the environment variable you just set, you need to open a new command window.
Variables set with setx variables are available in future command windows only, not in the current command window. (Setx, Examples)
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