Help with batch file: run only if K: label is XX ?

[gridsystems]

Hi,
I have three external USB backup disks with some overlapping content. I only plug one at a time and they are all mapped to K: for bacKup. That's just the way I prefer it.

I use three different robocopy batch files to mirror files to the respective drive, and would like to remove the possibility of accidentally launching backup commands for drive 1 when I have drive 2 connected.

So the drives are all on K: but they have different labels. Is there a way to make a conditional statement that checks the label of the connected drive and only continues to the robocopy command if it matches a predefined label?

Or is this not doable in batch files?

 

[Pyprohly]

Hi Gridsystems,

Testing a volume label is very do-able in batch. Vol is the command you're looking for.

The Vol command displays a disk's volume label and serial sequence.
E.g.

Vol K:

To isolate the information you need (i.e. the label only) from this command, wrap it in a for loop. Like this:

for /f "tokens=6" %%I in (' Vol K: ') do ( set label=%%I)

Edit: [
Or if in case the label has spaces in it, the following is more reliable:

for /f "tokens=5,*" %%A in (' Vol D: ') do ( set label=%%B& goto :break)
:break

(Note: Yes, volume labels can and will have spaces if they are typed during creation/renaming. Windows Explorer appears to strip them out, but they are actually there should a user input any during volume naming. The above For loop will capture volume labels correctly if spaces in the labels are present.)]

After that, you'd want to set up a bunch of conditional statements to test the label acquired by vol (stored in the variable %LABEL%) and run some command (preferably a goto) for the specific USB label that is detected.
E.g.

REM Identify volume label and goto batch label accordingly
if %LABEL%==ExampleUsbLabel_1 ( goto :CommandsToRunFor_ExampleUsbLabel_1 )
if %LABEL%==ExampleUsbLabel_2 ( goto :CommandsToRunFor_ExampleUsbLabel_2 )
if "%LABEL%"=="Example Usb Label With Spaces" ( goto :CommandsToRunFor_ExampleUsbLabel_3 )
 
REM Exit if label not identified
echo Invalid label: The label specified does not match the whitelisted criteria
exit /b 1

 

[Ztruker]

A simpler fix would be to put the batch files on the flash drive then run them from there. No chance of a screw up that way.