Using an iterating variable in powershell script to create file names : I'm trying to automate an adb test procedure using a batch file. After each run a file, `.CloudData.txt` is made. I want to preface that file name with a trial number, `T1.CloudData.txt`, etc. I made this test code:

    echo off
    set /p loops="Enter a number of iterations: "
    for /l %%i in (1,1,%loops%) do (
        set file=//scard//mytest//T%%i.CloudData.txt
        echo %file%
    )

So that eventually I can have something along the lines of:

    echo off
    set /p loops="Enter a number of iterations: "
    for /l %%i in (1,1,%loops%) do (
        rem Execute adb commands for test
        set file=//scard//mytest//T%%i.CloudData.txt
        adb shell mv /sdcard/mytest/.CloudData.txt file
    )

But the test returns, assuming `loops` = 3, `/sdcard/mytest/T3.CloudData.txt` 3 times. To be painfully specific, the number stored in `loops` is being added where `%%i` should be. From what I've read in the following post: https://stackoverflow.com/questions/2634590/bash-script-variable-inside-variable, I think I should be using an array, but that's impractical if one day I have to run the test for more than iterations than the array permits. How should I proceed?