On Sun, 17 Mar 2019 at 16:11, Andrew Greig via luv-main
I have just used grsync to ensure that my RAW datafiles on my RAID 1
drive and a copy of the RAW datafiles on my External hard drive are
consistent by effecting necessary changes on the external drive as
necessary. But what I now have (5 hours later) is a whole new copy of
the RAW datafiles inside the existing directory on the drive, this has
doubled my storage (200Gb to now 400GB),
I have never used grsync but if it is anything like rsync then what
you describe sounds very much like what might occur if someone
was unaware that the commands
rsync source_directory destination_directory
rsync source_directory/ destination_directory
have different behaviour.
(note the second command has a / in it, and the first does not).
I suggest you read a few paragraphs in the rsync manual
and compare the examples given
rsync -avz foo:src/bar /data/tmp
rsync -avz foo:src/bar/ /data/tmp
and note the sentence following that one:
"A trailing slash on the source changes this behavior to avoid
creating an additional directory level at the destination"
and the following paragraphs.
I have a hunch this is likely to solve your puzzle. It might also
be a good approach to do some commandline experiments
using a small test directory so that you don't have to wait 5 hours
each time, until you understand how the command works.