We can use setx as discussed here.
setx PATH "%PATH%;C:\Something\bin"
But this command can just make changed to user PATH variable not the system one.
How can we make a similar system wide command?
6 Answers
Type setx /? to get basic command help. You'll easily discover:
/M Specifies that the variable should be set in
the system wide (HKEY_LOCAL_MACHINE)
environment. The default is to set the
variable under the HKEY_CURRENT_USER
environment.
You need to run this from an elevated command prompt. Right-click the cmd shortcut and select Run as Administrator.
E.g.
setx /M PATH "%PATH%;C:\Something\bin"
Caution:
We may destroy the current system's PATH variable. Make sure you backup its value before you modify it.
From powershell
setx /M PATH "$($env:path);c:\program files\mynewprogram"
One problem with %PATH%, is it includes the user's path. If you don't mind Powershell, you can run the following
$p = [Environment]::GetEnvironmentVariable("PATH", [EnvironmentVariableTarget]::Machine);
[Environment]::SetEnvironmentVariable("PATH", $p + ";C:\MyPath", [EnvironmentVariableTarget]::Machine);
If you want to add some location to the PATH environment variable on user level, use the following on the command line:
setx PATH ^%PATH^%;"C:\Program Files\Something\bin"
Why the strange syntax? First, you do not want to expand the system PATH variable but keep it as a symbol, otherwise you will not participate in future additions to the system PATH variable. Therefore, you have to quote the % characters with ^.
If you use this in a command script, you have to use double %% instead of ^%.
The " encloses a string that contains spaces. If you do not have spaces, you can omit the quotes.
The added string has to follow directly without space so the whole thing forms a single argument to the setx command.
Solution when dealing with a >1024 char path:
None of the other answers worked in my case, but using pathed did the trick. You can append to path as simply as this:
pathed /append C:\Path\To\Be\Added /machine
You can check if the edit happened correctly by running
pathed
PS: if you want to change the user's path instead use:
pathed /append C:\Path\To\Be\Added /user
and pathed /user to check if it went through correctly.
PPS: In order to be able to run pathed from terminal, you need to put the exe in a directory already on your path (or add a new directory to path, but then you you might need to open a new instance of cmd.exe in order for the new path to be recognized)
Please refer to Adding a directory to the PATH environment variable in Windows
append_user_path.cmd
append_system_path.cmd
- both work just fine
