[src/trunk]: src/usr.bin/chflags Briefly describe the 'arch' and 'nodump' flags.

[jschauma <jschauma%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/68abd5b829ab
branches:  trunk
changeset: 375991:68abd5b829ab
user:      jschauma <jschauma%NetBSD.org@localhost>
date:      Wed May 24 22:33:17 2023 +0000

description:
Briefly describe the 'arch' and 'nodump' flags.

diffstat:

 usr.bin/chflags/chflags.1 |  16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diffs (37 lines):

diff -r b780f26a49ec -r 68abd5b829ab usr.bin/chflags/chflags.1
--- a/usr.bin/chflags/chflags.1 Wed May 24 22:14:31 2023 +0000
+++ b/usr.bin/chflags/chflags.1 Wed May 24 22:33:17 2023 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: chflags.1,v 1.28 2023/05/19 19:50:59 uwe Exp $
+.\"    $NetBSD: chflags.1,v 1.29 2023/05/24 22:33:17 jschauma Exp $
 .\"
 .\" Copyright (c) 1989, 1990, 1993, 1994
 .\"    The Regents of the University of California.  All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"    @(#)chflags.1   8.4 (Berkeley) 5/2/95
 .\"
-.Dd May 19, 2023
+.Dd May 24, 2023
 .Dt CHFLAGS 1
 .Os
 .Sh NAME
@@ -104,6 +104,18 @@ The following keywords are currently def
 .It Li uchg Ta user immutable Ta owner or super-user
 .El
 .Pp
+The
+.Va arch
+flag is only used in connection with certain foreign
+filesystems (e.g., MS-DOS, where it indicates whether
+a file has been modified since it was last backed up).
+.Pp
+A file with the
+.Va nodump
+flag set will by default only be backed up by
+.Xr dump 8
+during full backups.
+.Pp
 Putting the letters
 .Sq Cm no
 before a keyword causes the flag to be turned off.