Thanks, very cool!  These expansion thingies are new to me. I used to use 
4dos and 4nt, but haven't done anything at all tricky with batch files for 
ages.

On Wednesday, May 13, 2020 at 11:18:07 AM UTC-4, Matt Wilkie wrote:
>
> I did have to edit the batch file paths from f:\ to e:\ because the mount 
>> name of the drive was different on the two computers.  I haven't come up 
>> with a way to adapt to the change in drive letter except by editing the 
>> batch file, sorry to say.
>
>
> If using CMD (as opposed to Powershell) use %~dp0
>
> %0 - name of bat file (or call :label)
> %~ - trigger expansion features
> %~d - drive letter
> %~p - path
> %~n - filename
> %~x - file extension
>
> %~dpnx0 - fully qualified path and file name of currently executing batch 
> file.
>
> See https://ss64.com/nt/syntax-args.html for more
>
> -matt
>

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