Rsync syntax error when run from bash script

Question

I have been working on a backup script that uses rsync to do an incremental backup.

I have tested the following rsync command manually, and it runs and completes a b

Answer 1

This:

rsync "$OPT1 $SRC $TRG"

passes all your intended arguments lumped together as one argument, which rsync doesn't know how to deal with.

Try this instead:

rsync ${OPT1} ${SRC} ${TRG}