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Message-Id: <20211201225651.58251-1-adilger@dilger.ca>
Date: Wed, 1 Dec 2021 15:56:51 -0700
From: Andreas Dilger <adilger@...ger.ca>
To: tytso@....edu
Cc: linux-ext4@...r.kernel.org, Andreas Dilger <adilger@...ger.ca>
Subject: [PATCH] misc: fix chattr usage message for project ID
Fix the "chattr -h" usage message to properly document that the
"-p" option takes a project argument, like "-v" takes a version.
Update the man page formatting to emphasize literal strings.
Signed-off-by: Andreas Dilger <adilger@...ger.ca>
---
misc/chattr.1.in | 86 +++++++++++++++++++++++++++++++++---------------
misc/chattr.c | 2 +-
2 files changed, 61 insertions(+), 27 deletions(-)
diff --git a/misc/chattr.1.in b/misc/chattr.1.in
index 922410b6..cd2e0020 100644
--- a/misc/chattr.1.in
+++ b/misc/chattr.1.in
@@ -23,44 +23,77 @@ chattr \- change file attributes on a Linux file system
.B chattr
changes the file attributes on a Linux file system.
.PP
-The format of a symbolic mode is +-=[aAcCdDeFijmPsStTux].
+The format of a symbolic
+.I mode
+is
+.BR +-= [ aAcCdDeFijmPsStTux ].
.PP
-The operator '+' causes the selected attributes to be added to the
-existing attributes of the files; '-' causes them to be removed; and '='
+The operator
+.RB ' + '
+causes the selected attributes to be added to the
+existing attributes of the files;
+.RB ' - '
+causes them to be removed; and
+.RB ' = '
causes them to be the only attributes that the files have.
.PP
-The letters 'aAcCdDeFijmPsStTux' select the new attributes for the files:
-append only (a),
-no atime updates (A),
-compressed (c),
-no copy on write (C),
-no dump (d),
-synchronous directory updates (D),
-extent format (e),
-case-insensitive directory lookups (F),
-immutable (i),
-data journaling (j),
-don't compress (m),
-project hierarchy (P),
-secure deletion (s),
-synchronous updates (S),
-no tail-merging (t),
-top of directory hierarchy (T),
-undeletable (u),
-and direct access for files (x).
+The letters
+.RB ' aAcCdDeFijmPsStTux '
+select the new attributes for the files:
+append only
+.RB ( a ),
+no atime updates
+.RB ( A ),
+compressed
+.RB ( c ),
+no copy on write
+.RB ( C ),
+no dump
+.RB ( d ),
+synchronous directory updates
+.RB ( D ),
+extent format
+.RB ( e ),
+case-insensitive directory lookups
+.RB ( F ),
+immutable
+.RB ( i ),
+data journaling
+.RB ( j ),
+don't compress
+.RB ( m ),
+project hierarchy
+.RB ( P ),
+secure deletion
+.RB ( s ),
+synchronous updates
+.RB ( S ),
+no tail-merging
+.RB ( t ),
+top of directory hierarchy
+.RB ( T ),
+undeletable
+.RB ( u ),
+and direct access for files
+.RB ( x ).
.PP
The following attributes are read-only, and may be listed by
.BR lsattr (1)
but not modified by chattr:
-encrypted (E),
-indexed directory (I),
-inline data (N),
-and verity (V).
+encrypted
+.RB ( E ),
+indexed directory
+.RB ( I ),
+inline data
+.RB ( N ),
+and verity
+.RB ( V ).
.PP
Not all flags are supported or utilized by all file systems; refer to
file system-specific man pages such as
.BR btrfs (5),
.BR ext4 (5),
+.BR mkfs.f2fs (8),
and
.BR xfs (5)
for more file system-specific details.
@@ -258,4 +291,5 @@ http://e2fsprogs.sourceforge.net.
.BR lsattr (1),
.BR btrfs (5),
.BR ext4 (5),
+.BR mkfs.f2fs (8),
.BR xfs (5).
diff --git a/misc/chattr.c b/misc/chattr.c
index 644ef4e9..c7382a37 100644
--- a/misc/chattr.c
+++ b/misc/chattr.c
@@ -86,7 +86,7 @@ static unsigned long sf;
static void usage(void)
{
fprintf(stderr,
- _("Usage: %s [-pRVf] [-+=aAcCdDeijPsStTuFx] [-v version] files...\n"),
+ _("Usage: %s [-RVf] [-+=aAcCdDeijPsStTuFx] [-p project] [-v version] files...\n"),
program_name);
exit(1);
}
--
2.25.1
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