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

[geoff@plan9.bell-labs.com]

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