Hi,

On Sun, May 18, 2025 at 12:47:25PM -0400, Default User wrote:

Since I know almost no shell scripting, the rsync usb drive Aá
to usb drive B copy is done with a simple bash script consisting
only of the rsync backup command, with options and parameters, but
without any code to verify that usb drive B is attached.

I really should learn more shell scripting. That is something
else I will get to "Real Soon Now".
:)

If your backup script is a bash script then all you need do is put
something like:

if ! findmnt /mnt/usb-drive-b; then
echo "Mount USB drive B before running this!" >&2
exit 1
fi

near the top of your script, assuming that /mnt/usb-drive-b is where you
expect that to be mounted.

You can do fancier checks to make sure that the thing mounted there is
really the correct thing, but that will do for starters.

Thanks,
Andy

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