Hello,
I have a couple of questions about using rsync scriptographically. I've looked
around and can't find anything. I must be missing something obvious.
I'm trying to write a script that will synchronise various local folders on a
Mac OS X Workstation to an SMB mounted Windows (2003, mostly) Server where the
user I'm copying as has a quota applied. I want to compare the available space
I have, which I can find with:
df /Volumes/$USER | grep % | awk -F'[ ] ' '{ print $4 }'
Against the amount of data that rsync thinks it is going to copy.
What I'm after is the most efficient way of finding out how much data rsync
wants to copy, dying (relatively) gracefully should it be within X of the quota
(say, 10MB or so).
At the moment I can use the same rsync command I'd run to do the copy but with
the -n option:
rsync -a -u -z -E -r -l -n --progress /path/to/src /Volumes/path/to/dest/ |
grep total size is | awk -F'[ ]' '{ print $4 }'
to do a dry-run to grep and cut a number from rsync's output.
The only thing is that this might take a while if there are very many files and
potentially there are hundreds of thousands. I'd then have to go and run the
same command all over again should the data fit, this time without the -n
option. I also feel that my units may be rather disparate (i.e. df's output
isn't the same unit sizes as rsync's).
I'm sure there must be a better way than running rsync twice.
On another note I'm getting an error:
copyfile(.._..v6AxMh,./., COPYFILE_UNPACK) failed:13
When trying to run with -E. The consensus seems to be that it's a permissions
issue (which I'll investigate later). Thoughts?
Many thanks,
~W
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