How can I save variables longterm in Batch?

Question

I've seen it done before on someone else's Batch program, so I'm sure it's possible. Every time I launch my program I run a series of lines of code such as:

set/a num=0

set/a tog=1

set/a ran=%random% %%10 +1

However, I would like for certain variables to stay around, even after the program is closed. I need scripts that can:

Write in a separate document the values of certain variables
Check that document for values at any point in any usage session

Thanks in advance!

@AVee I read that question and it doesn't seem to answer my request. That or I'm not good enough at Batch to understand — tjbushra
– tjbushra, Commented Jun 28, 2015 at 21:03
Also worth noting that as long as the command prompt that the script runs in stays open, the variable will also be available. So instead of double-clicking the script, open the command prompt, cd to wherever it is, and then run your script from there and just never close the command prompt. — SomethingDark
– SomethingDark, Commented Jun 28, 2015 at 21:05
And look at the answer under the accepted answer in the other question. As long as you don't need /a or /p (and you only need /a when you're doing math with variables, not when you're setting variables to numbers), then you can just use setx instead of set. — SomethingDark
– SomethingDark, Commented Jun 28, 2015 at 21:09
@SomethingDark I need the make a folder of files that I can download onto someone else's computer and it will work without any instructions. I want it to be user friendly enough that they can just run a .bat and not have to worry about anything. I just need a permanent memory file so that when they turn off sound effects or turn off animations, it will remember their preferences next time they run the .bat — tjbushra
– tjbushra, Commented Jun 28, 2015 at 21:11

SomethingDark · Accepted Answer · 2015-06-29 01:30:27Z

You need a save system like so:

( echo %VARIABLE1% echo %VARIABLE2% echo %VARIABLE3% echo %VARIABLE4% echo %VARIABLE5% ) > LOGS.prgmsav

The file extension can be .txt or something weird like .nerfguns, to load LOGS.prgmsav:

< LOGS.prgmsav ( set /p VARIABLE1= set /p VARIABLE2= set /p VARIABLE3= set /p VARIABLE4= set /p VARIABLE5= )

The VARIABLE is any variable, you can save as many as you want! I hope I helped!

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