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From: Steve Simon <steve@quintile.net>
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Date: Tue, 26 Apr 2022 15:23:36 +0100
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Subject: Re: [9front] Free Carrots #4: Making Backups
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fwiw

i tried to use replica when it appeared but always struggled. it worked perf=
ectly for labs releases but synchronising home and work systems proved diffi=
cult.

i used mkfs but preferred dump9660 if the data being backed up fits on a cd -=
 for a single project. it has the nice feature that you can do incremental b=
ackups with a dated top lever directory, in the manner of /n/dump

-Steve

> On 26 Apr 2022, at 12:43 pm, qwx@sciops.net wrote:
>=20
> =EF=BB=BFOn Sat Apr 23 06:23:23 +0200 2022, sl@stanleylieber.com wrote:
>=20
>> http://helpful.cat-v.org/Blog/2022/04/22/0/
>>=20
>> sl
>=20
> Hello,
>=20
> I imagine that by now a whole bunch of people have come up with ways
> to back things up or synchronize trees.  I've used mkfs(8) a lot, then
> clone(1), etc., but I really wanted to also be able to remove files no
> longer present (while not touching any mtimes for up-to-date stuff,
> etc.).  After a bunch of iterations of scripts with diff(1) and
> others, I now use derp(1) together with the equivalent of dircp(1) and
> some awk [1].  This prints two commands, one to remove files, the
> other to unpack new or modified ones.  Of course, it's slow and has
> tar(1)'s filename length limit, but I kind of like it.  I'm very
> interested in hearing about other solutions though :)
>=20
> Cheers and thanks for the post,
> qwx
>=20
> [1] http://shithub.us/qwx/rc/HEAD/bin/syncab/raw