Pass Variable into CMD

Question

I have setup a script and tested that it work with user input via set /p but now I want to pass that variable automatically to the cmd.

Script w/ user input:

@ECHO OFF

set /p id="Enter Rom: "

start /d "G:\Emulators\N64\Project64" Project64.exe "G:\Emulators\N64\Roms\%id%"

What I want to pass to the CLI:

C:\WINDOWS\system32>set id = "Goldeneye 007.v64" & "C:\script.cmd"

Solution

You can use batch arguments and pass the value of the ROM to the call of the batch script when you execute it such as C:\script.cmd "<Value Argument>".

Rather than using set /p id="Enter Rom: " use set id=%~1 and that's all that is needed to allow the first argument passed to the script to be used for the value to set the id variable.

Batch Script Example

@ECHO OFF

set id=%~1

start /d "G:\Emulators\N64\Project64" Project64.exe "G:\Emulators\N64\Roms\%id%"

Argument Passed to Batch Script Example

C:\script.cmd "Goldeneye 007.v64"

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Further Resources

• Command Line arguments (Parameters)

  %* in a batch script refers to all the arguments (e.g. %1 %2 %3 %4 %5 ...%255) only arguments %1 to %9 can be referenced by number.

Comments

[Vomit IT - Chunky Mess Style]

So will a user execute the script and always input the value then? I just want to make sure you need the user set variable value to be what the rest of the batch script uses, correct?

[FreeSoftwareServers]

No, perhaps I should have explained more, I'm looking to create a "universal" cmd that I can pass the ROM name too before running the CMD

[FreeSoftwareServers]

I only tested w/ User input, now I want to just have it be automated w/o user input at all

[Vomit IT - Chunky Mess Style]

Okay, so you can just make the batch script accept an argument rather than setting it and use that variable as %~1.

[Vomit IT - Chunky Mess Style]

So you can use set id=%~1 and then pass the argument to the batch as ............................................................‌​........ C:\script.cmd "Goldeneye 007.v64"

[Vomit IT - Chunky Mess Style]

I wrote up an answer for you with more clarity so let me know what you think when you get to it.

[FreeSoftwareServers]

This is EXACTLY what I needed, I will do a write-up if your interested in the final "goal", is to use Steam ROM Manager to input shortcuts into steam to launch emulator w/ rom, but also I need to launch xpadder to map additional keyboar shortcuts.