Adding Lua path name in Windows 8 - windows

How do you add Lua into the path variable so that I can just type
lua filename.lua
in cmd to run it?
I'm using Windows 8.1 64 bit

You can also do this directly from a cmd.exe shell. Open a "Command Prompt" and type in:
setx path "x:/your/lua/path/goes/here;%path%" /M
Restart the Command Prompt for it to take effect.

First you must ensure that lua.exe is on your PATH: from the console where you want to run it, just type "lua" and ENTER; if you end up in Lua interpreter, the answer is yes. If you get command not found, you must extend PATH, either in the console (then you will have to do it every time you open a new console), or via the operating system's environment variables (via control panel as described by Yu Hao, or via setx as descripbed by greatwolf).
Once lua.exe is in your PATH, the first command line parameter you provide to the lua.exe must be the path to the .lua file. So if the current working directory in console is C:\Foo\bar, and your script is in C:\Foo\bar, then all you need to type is "lua yourScript.lua". If your script is instead in C:\Foo\cla, then you would type "lua ..\cla\yourScript.lua". To verify what is th current working folder, type "cd" then ENTER, it is the path printed.

Related

What is the difference between the PATH listed by 'env' in git-bash and the PATH in Windows 10's control panel?

My goal is to write a shell script that will ensure that a bunch of Windows 10 computers with Python freshly installed on them can run the 'python' command from a git-bash command line in Windows Terminal by having the script check the PATH environment variable and modify it if necessary.
More specifically, I want my script to check if the following three paths are part of each computer's PATH, and if they aren't already a part of it, edit the PATH so that it permanently contains them.
C:\Program Files\Python311
C:\Program Files\Python311\Scripts
C:\Users\ <localUser>\AppData\Roaming\Python\Python311\Scripts
What threw me off is that I noticed that the PATH variable that I get from the 'env' command on the git-bash command line is different from the PATH variable that I can see in Windows 10's control panel. I tried adding a junk path to PATH from the command line by typing
export PATH=/c/someNonexistentPath in git bash but it didn't change the PATH that I could see in the Windows 10 control panel. Moreover, I couldn't even see if it changed the PATH I get from running env on the command line because for some reason after you run any export command git-bash gets amnesia and refuses to recognize the env command until you start a new session of git-bash.
Shouldn't there only be one PATH on a computer? If the two seemingly different PATHs that I have mentioned are not supposed to be the same, what is the difference between them, and how can I accomplish my goal of writing the script so that it does what I need it to do?
Please let me know if I need to include any more system-specific info. Thanks in advance for your help.

Setting default path with custom variable in windows 10pro

I have been trying to get windows to recognize shortcuts for developer tools. Things like adb for C:\Users\myusername\Andriod\platform-tools\adb.exe. I have tried using CMD and Powershell but they both don't add the PATH I tried the GUI and it doesn't show up.
I've tried setx path "%PATH%;C:\path\to\C:\Users\myusername\Andriod\platform-tools\adb.exe" in powershell and cmd then restarted powershell or cmd
input the variable adb but it pulls a command not recognized error.
Did you try the following?
Adding the path "C:\Users\myusername\Andriod\platform-tools" to your system/user PATH variable? You can do this by start-> environment variable -> environment variable and under system or user, edit the PATH variable and add the above link. Once you do this, restart CMD for it to work.
Add the executable in one of the already existing locations that are in the PATH variable. (Although this is one method, I would not suggest this). Again, if the executable has any dependencies, it must be in a place where the exe itself can access.

Windows PATH variable is different if whether running CMD as admin or not

I just installed scala but I can't call it from the command line. So I dutifully checked my path through the environmental variables of the control panel and saw the scala folder present. If I type scala from cmd within that folder, it works fine.
So I tried echo %PATH% from windows cmd to see any problem. If running a normal command window, I get almost the same path except it's missing the scala path item. If I run the command line (Admin), then the echoed path matches the environment variables version. Under this admin setting, scala works fine.
There is no user path variable defined, it's only a system variable.
I've never seen this before. Why is there a difference between admin path and non-admin path? And how do I access the scala path item from the non-admin command line?
Thanks!
I just had the same problem, it was caused by the environment variables not being refreshed. A reboot would have solved it, however there is a way to refresh the environment variables without a reboot.
Open cmd prompt window
Input set PATH=C
close and restart cmd prompt window
input echo %PATH% to check
This worked for me in Windows 10.

"Register" an .exe so you can run it from any command line in Windows

How can you make a .exe file accessible from any location in the Windows command window? Is there some registry entry that has to be entered?
You need to make sure that the exe is in a folder that's on the PATH environment variable.
You can do this by either installing it into a folder that's already on the PATH or by adding your folder to the PATH.
You can have your installer do this - but you may need to restart the machine to make sure it gets picked up.
Windows 10, 8.1, 8
Open start menu,
Type Edit environment variables
Open the option Edit the system environment variables
Click Environment variables... button
There you see two boxes, in System Variables box find path variable
Click Edit
a window pops up, click New
Type the Directory path of your .exe or batch file ( Directory means exclude the file name from path)
Click Ok on all open windows and restart your system restart the command prompt.
You can add the following registry key:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\myexe.exe
In this key, add the default string value containing the path to the exe file.
You have to put your .exe file's path into enviroment variable path. Go to "My computer -> properties -> advanced -> environment variables -> Path" and edit path by adding .exe's directory into path.
Another solution I personally prefer is using RapidEE for a smoother variable editing.
Rather than putting the executable into a directory on the path, you should create a batch file in a directory on the path that launches the program. This way you don't separate the executable from its supporting files, and you don't add other stuff in the same directory to the path unintentionally.
Such batch file can look like this:
#echo off
start "" "C:\Program Files (x86)\Software\software.exe" %*
Let's say my exe is C:\Program Files\AzCopy\azcopy.exe
Command/CMD/Batch
SET "PATH=C:\Program Files\AzCopy;%PATH%"
PowerShell
$env:path = $env:path + ";C:\Program Files\AzCopy"
I can now simply type and use azcopy from any location from any shell inc command prompt, powershell, git bash etc
It is very simple and it won't take more than 30 seconds.
For example the software called abc located in D:/Softwares/vlc/abc.exe
Add the folder path of abc.exe to system environment variables.
My Computer -> Click Properties -> Click Advanced system settings -> Click Environment Variables
Click on Ok.
now you can just open cmd prompt and you can launch the software from anywhere.
to use abc.exe just type abc in the command line.
it's amazing there's no simple solution for such a simple task on windows,
I created this little cmd script that you can use to define aliases on windows (instructions are at the file header itself):
https://gist.github.com/benjamine/5992592
this is pretty much the same approach used by tools like NPM or ruby gems to register global commands.
Simple Bash-like aliases in Windows
To get global bash-like aliases in Windows for applications not added to the path automatically without manually adding each one to the path, here's the cleanest solution I've come up with that does the least amount of changes to the system and has the most flexibility for later customization:
"Install" Your Aliases Path
mkdir c:\aliases
setx PATH "c:\aliases;%PATH%"
Add Your Alias
Open in New Shell Window
To start C:\path to\my program.exe, passing in all arguments, opening it in a new window, create c:\aliases\my program.bat file with the following contents(see NT Start Command for details on the start commmand):
#echo off
start "myprogram" /D "C:\path to\" /W "myprogram.exe" %*
Execute in Current Shell Window
To start C:\path to\my program.exe, passing in all arguments, but running it in the same window (more like how bash operates) create c:\aliases\my program.bat file with the following contents:
#echo off
pushd "C:\path to\"
"my program.exe" %*
popd
Execute in Current Shell Window 2
If you don't need the application to change the current working directory at all in order to operate, you can just add a symlink to the executable inside your aliases folder:
cd c:\aliases\
mklink "my program.exe" "c:\path to\my program.exe"
Add to the PATH, steps below (Windows 10):
Type in search bar "environment..." and choose Edit the system environment variables which opens up the System Properties window
Click the Environment Variables... button
In the Environment Variables tab, double click the Path variable in the System variables section
Add the path to the folder containing the .exe to the Path by double clicking on the empty line and paste the path.
Click ok and exit. Open a new cmd prompt and hit the command from any folder and it should work.
If you want to be able to run it inside cmd.exe or batch files you need to add the directory the .exe is in to the %path% variable (System or User)
If you want to be able to run it in the Run dialog (Win+R) or any application that calls ShellExecute, adding your exe to the app paths key is enough (This is less error prone during install/uninstall and also does not clutter up the path variable)
You may also permanently (after reboots) add to the Path variable this way:
Right click My Computer -> Click Properties -> Click Advanced system settings -> Click Environment Variables
Reference: Change System/User Variables
Put it in the c:\windows directory or add your directory to the "path" in the environment-settings (windows-break - tab advanced)
regards,
//t
In order to make it work
You need to modify the value of the environment variable with the name key Path, you can add as many paths as you want separating them with ;. The paths you give to it can't include the name of the executable file.
If you add a path to the variable Path all the excecutable files inside it can be called from cmd or porweshell by writing their name without .exe and these names are not case sensitive.
Here is how to create a system environment variable from a python script:
It is important to run it with administrator privileges in order to make it work. To better understand the code, just read the comments on it.
Tested on Windows 10
import winreg
# Create environment variable for call the program from shell, only works with compiled version
def environment_var(AppPath):
# Point to the registry key of the system environment variables
key = winreg.CreateKey(winreg.HKEY_LOCAL_MACHINE, r'System\CurrentControlSet\Control\Session Manager\Environment')
def add_var(path):
# Add the variable
winreg.SetValueEx(key, 'Path', 0, winreg.REG_SZ, path)
winreg.CloseKey(key)
try:
# Try to get the value of the Path variable
allPaths = winreg.QueryValueEx(key, 'Path')[0]
except Exception:
# Create the Path variable if it doesn't exist
add_var(path=AppPath)
return
# Get all the values of the existing paths
Path=allPaths.split(';')
# If the Path is empty, add the application path
if Path == ['']:
add_var(path=AppPath)
return
# Check if the application path is in the Path variable
if AppPath not in Path:
# Add the application path to the Path environment variable and add keep the others existing paths
add_var(path=AppPath+';'+allPaths)
# Only run this if the module is not imported by another
if __name__ == "__main__":
# Run the function
environment_var(AppPath=".")
You can find more information in the winreg documentation
You can also move your files to C:\Windows, but you need to use Administrator privileges and pay attention.
What did I mean with pay attention?
You need pay attention because you can also do some messes with Windows system files (Windows may not even work anymore) if you modify, delete, and do some changes incorrectly and accidentally in this folder...
Example: Don't add a file that have the same name of a Windows file
This worked for me:
put a .bat file with the commands you need (I use to run .py script into this) into a FOLDER,
go in the variable environment setting (type var in the search bar and it will show up)
in the global settings
choose path,
then modify,
then add the path to your .bat file (without the .bat file)
close everything: done.
Open the cmd, write the name of the .bat file and it will work
Example
Want to open chrome on a specific link
create a .bat file with this (save it as blog.bat for example)
start "" "https://pythonprogramming.altervista.org/"
go in enviromental variable settings from the search bar in the bottom left of the window desktop
go in enviromental variables (bottom button) then in path (bottom)
add the path, for example G:\myapp_launcher
click apply or ok
Now open cmd and write blog: chrome will open on that page
Do the same to open a file... create a .bat in the folder G:\myapp_launcher (or whatever you called the folder where you put the batch file), call it run.bat or myapp.bat or whatever (write inside of it start filemane.pdf or whatever file you want to open) and after you saved it, you can run that file from cmd with run or myapp or whatever you called your batch file.
Use a 1 line batch file in your install:
SETX PATH "C:\Windows"
run the bat file
Now place your .exe in c:\windows, and you're done.
you may type the 'exename' in command-line and it'll run it.
Another way could be through adding .LNK to your $PATHEX.
Then just create a shortcut to your executable (ie: yourshortcut.lnk) and put it into any of the directories listed within $PATH.
WARNING NOTE:
Know that any .lnk files located in any directories listed in your $PATH are now "PATH'ed" as well. For this reason, I would favor the batch file method mentionned earlier to this method.
I'm not a programmer or anything of the sort, but here's my simple solution:
Create a folder in which you'll be putting SHORTCUTS for all the programs you want to register;
Add that folder to the PATH;
Put all the shortcuts you want in the folder you created in the first step (context menu, New, Shortcut...) The SHORTCUT NAME will have be the be summoned when calling the program or function... NOT THE TARGET FILE NAME.
This will keep you from unintentionally putting files you don't want in the PATH.
Feel free to drop a comment if you think this answer needs to be improved. Cheers 🍻.
P.S. No system or File Explorer restart needed. 😀
Best way is to add the folder path for the .EXE file to Path values in the environment variable.
I'm not sure what versions of Windows this works with, but I put some useful .bat and .exe files into:
%LOCALAPPDATA%\Microsoft\WindowsApps
(equivalent to %USERPROFILE%\AppData\Local\Microsoft\WindowsApps)
which seems to be on my default PATH. I'd be interested to see if this were the general case.
DOSKEY is a Microsoft version of 'alias'. That function is already built into all versions of Windows (and most versions of DOS)
doskey fred=c:\myApps\myprog.exe
You'll want to load that every time you open a command prompt. Which you can do by any number of different methods. One way is to
Make a file containing all the doskey macros you want:
doskey fred=c:\whatever.exe
doskey alan=c:\whateverelse.exe
Change the file type / file name / file extension to .CMD or .BAT
ren myfile.txt myfile.CMD
Add the CMD/BAT file to your command processor autoruns key:
reg ADD \\HKCU\Software\Microsoft\Command Processor /v autorun /t REG_SZ /d myfile.CMD
For more information see
https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/doskey
and
https://serverfault.com/a/1049766/142882
(serverfault.com/questions/95404/is-there-a-global-persistent-cmd-history)
Should anyone be looking for this after me
here's a really easy way to add your Path.
Send the path to a file like the image shows,
copy and paste it from the file and add the
specific path on the end with a preceding semicolon
to the new path. It may be needed to be adapted prior
to windows 7, but at least it is an easy starting point.
Command Prompt Image to Export PATH to text file
The best way to do this is just install the .EXE file into the windows/system32 folder. that way you can run it from any location. This is the same place where .exe's like ping can be found

Adding a Application specific paths, so it works from the command line in Windows

Following the guide from Microsoft,
http://msdn.microsoft.com/en-us/library/ee872121(VS.85).aspx , I am able to get my program to be able to make a program resolve the dynamic libraries that are required in order for it to work.
So I add a value with the full name and path to my executable, and add subkey to this entry (named path) with the full path the directory of the DLL files.
And magic. It works. I go the start menu, and types myprogram.exe and it starts up and is now able to locate the dll files correctly.
However, if I start the command prompt using the command cmd.exe, and then try to run myprogram.exe is not able to resolve the DLL's anymore. For some reason the command prompt do not seems to respect/read the values of the registry when it is set under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths
Any suggestion to how I can get this behavior to work from within the command prompt as well as from the start menu?
It is correct. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths is used by ShellExecuteEx and not by CreateProcess. So not all programs will use the settings from App Paths of your application. If you want to define PATH for cmd.exe you can either use subkey of App Paths with the name cmd.exe or use an old %SystemRoot%\System32\autoexec.nt file to modify PATH environment variable.
It's also possible to use "START /WAIT app.exe" from command line which uses ShellExecuteEx.
I'll give it my best shot.
First, notice that both the cmd & the run\start menu options are running everything in C:\WINDOWS\system32.
If you're dll was there then it would work.
if you don't want to put it there, you can change the "environmental variables" by clicking right mouse button on "my computer"-> "properties" -> "Advanced" -> "environmental variables".
good luck.

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