[9fans] Is there `cp -r fdir/ tdir/` equivalent?

[9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Alexandre Vassalotti]

Hi,

I recently installed plan9 on a spare drive and started to play with
it. I love the design of the system. The code is clean, so plan9 is
perfect for someone like me who likes to tinker and learn how
computers really works.

The only thing that slightly bothers me, is that the standard Unix
tools I am used to are relatively minimal. Although, I understand that
is probably by design -- i.e, easier maintenance.

Anyway, all that to ask if there is an equivalent of `cp -r fdir/
tdir/` for making a copy of a directory. If not then it is not a
problem, I will just add  the recursive option to cp(1) myself.

Thanks,
-- Alexandre

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Gorka Guardiola]

>
> Anyway, all that to ask if there is an equivalent of `cp -r fdir/
> tdir/` for making a copy of a directory. If not then it is not a

dircp


-- 
- curiosity sKilled the cat

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Kris Maglione]

http://plan9.bell-labs.com/wiki/plan9/UNIX_to_Plan_9_command_translation/index.html

@{cd $a; tar c .} | tar x

There are plenty of scripts to do it on sources, or you can 
instell Inferno and use its fcp -r.

-- 
Kris Maglione

Left to themselves, all things go from bad to worse.

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Alexandre Vassalotti]

On 8/3/07, Kris Maglione <bsdaemon@comcast.net> wrote:
> http://plan9.bell-labs.com/wiki/plan9/UNIX_to_Plan_9_command_translation/index.html
>

Thanks, for this links. That will help me a lot.

> @{cd $a; tar c .} | tar x
>

Oh, thanks for this trick too.

-- Alexandre

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Martin Neubauer]

* Alexandre Vassalotti (alexandre@peadrop.com) wrote:
> The only thing that slightly bothers me, is that the standard Unix
> tools I am used to are relatively minimal.

Why not using the standard Plan 9 tools instead?

> 
> Anyway, all that to ask if there is an equivalent of `cp -r fdir/
> tdir/` for making a copy of a directory. If not then it is not a
> problem, I will just add  the recursive option to cp(1) myself.

More seriously, the normal approach would be using tar. This and some more
can be found in the 9fans archives or at
http://plan9.bell-labs.com/wiki/plan9/UNIX_to_Plan_9_command_translation/index.html .

	Martin

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[geoff]

As Gorka said, use dircp.  It's been in /rc/bin for many years but
apparently wasn't documented.  I've added it to tar's manual page and
pushed the page out.

There are undoubtedly other undocumented programs in /rc/bin; it's
probably worthwhile to browse it.

Tar (thus dircp) doesn't copy Plan-9-specific metadata such as
append-only and exclusive-open permission bits, so if you need a
really accurate copy of a subtree, you'll probably want to use mkfs
and mkext.  They're a bit trickey to invoke correctly, but the
following script has worked for me:
---
#!/bin/rc
# dircpmk src dest - copy trees with mkfs|mkext
if (! ~ $#* 2) {
	echo usage: $0 src dest >[1=2]
	exit usage
}
# /sys/lib/sysconfig/proto/allproto just contains "+".
# mkext -v will verbosely describe extraction
disk/mkfs -a -s $1 /sys/lib/sysconfig/proto/allproto | disk/mkext -ud $2
---

It's a bit chatty and produces output like this:

processing /sys/lib/sysconfig/proto/allproto
file system made
done

Re: [9fans] Is there `cp -r fdir/ tdir/` equivalent?

[Alexandre Vassalotti]

On 8/3/07, Martin Neubauer <m.ne@gmx.net> wrote:
>
> Why not using the standard Plan 9 tools instead?
>

Because I don't know them yet. ;)

-- Alexandre