From: ron minnich <rminnich@gmail.com>
To: arnold@skeeve.com
Cc: tuhs@tuhs.org
Subject: [TUHS] Re: Be there a "remote diff" utility?
Date: Thu, 16 May 2024 10:08:40 -0700 [thread overview]
Message-ID: <CAP6exYLYjqFP+kzC7TK19=Esfi2bDv5RfLjMmoj-pyBfgisaLA@mail.gmail.com> (raw)
In-Reply-To: <202405160901.44G91CN0007274@freefriends.org>
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" The 9import tool allows an arbitrary file on a remote system, with the
capability of running the Plan 9 exportfs(4) service, to be imported into
the local name space. Usually file is a directory, so the complete file
tree under the directory is made available."
https://9fans.github.io/plan9port/man/man4/9import.html
9import host1 / /tmp/host1
9import host2 /tmp/host2
diff /tmp/host1/a/b/c /tmp/host2/a/b/c
(or whatever command you want that works with files. No need for stuff like
'rdiff' etc.)
stuff you take for granted on some systems ...
I have the plan 9 cpu command working (written in Go) and I think it's time
I get import working more widely, it's just too useful.
On Thu, May 16, 2024 at 2:01 AM <arnold@skeeve.com> wrote:
> Ralph Corderoy <ralph@inputplus.co.uk> wrote:
>
> > > Maybe
> > >
> > > diff -u <(ssh host1 cat file1) <(ssh host2 cat file2)
> >
> > This is annoyingly noisy if the remote SSH server has sshd_config(5)'s
> > ‘Banner’ set which spews the contents of a file before authentication,
> > e.g. the pointless
> >
> > [....]
> >
> > It appears on stderr so doesn't upset the diff but does clutter.
>
> All true, I didn't think about that.
>
> > And discarding stderr is too sloppy.
>
> But the author of a personal script knows his/her remote machines
> and can decide if
>
> diff -u <(ssh host1 cat file1 2>/dev/null) <(ssh host2 cat file2
> 2>/dev/null)
>
> is appropriate or not.
>
> My main point was that the problem is easily solved with a
> few lines of shell, so no need for a utility, especially one
> written in C or some other compiled language.
>
> Thanks,
>
> Arnold
>
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next prev parent reply other threads:[~2024-05-16 17:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-16 6:34 [TUHS] " Dave Horsfall
2024-05-16 6:51 ` [TUHS] " arnold
2024-05-16 7:33 ` Ralph Corderoy
2024-05-16 8:59 ` George Michaelson
2024-05-16 9:01 ` arnold
2024-05-16 17:08 ` ron minnich [this message]
2024-05-16 18:51 ` Skip Tavakkolian
2024-05-16 19:51 ` Marc Donner
2024-05-16 19:53 ` Theodore Ts'o
2024-06-19 23:20 ` Alan D. Salewski
2024-05-16 12:31 Douglas McIlroy
2024-05-16 17:12 ` Bakul Shah via TUHS
2024-05-16 18:12 ` Rich Salz
2024-05-16 18:38 ` Ben Greenfield via TUHS
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