The filename argument vanished from usage() in commit v2.21-791-gc8a6af0,
and I found it worthwhile to document the behavior in the man page
when filename is missing (i.e. stdin is used instead).
Have a nice day,
Berny
>From e7c7a6300a20f7fd8f1e2211ac856cbceba740d2 Mon Sep 17 00:00:00 2001
From: Bernhard Voelker <mail@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 3 Jul 2012 09:42:55 +0200
Subject: [PATCH] utmpdump: document optional filename argument
Signed-off-by: Bernhard Voelker <mail@xxxxxxxxxxxxxxxxxxx>
---
login-utils/utmpdump.1 | 5 ++++-
login-utils/utmpdump.c | 2 +-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/login-utils/utmpdump.1 b/login-utils/utmpdump.1
index 65dfe32..4df49dd 100644
--- a/login-utils/utmpdump.1
+++ b/login-utils/utmpdump.1
@@ -21,10 +21,13 @@ utmpdump \- dump UTMP and WTMP files in raw format
.SH SYNOPSIS
.B utmpdump
.RB [ \-frh ]
-.I filename
+.I [ filename ]
.SH DESCRIPTION
\fButmpdump\fP is a simple program to dump UTMP and WTMP files
in raw format, so they can be examined.
+\fButmpdump\fP reads from stdin unless a
+.I filename
+is passed.
.SH OPTIONS
.IP "\fB\-f, \-\-follow\fP"
output appended data as the file grows.
diff --git a/login-utils/utmpdump.c b/login-utils/utmpdump.c
index ac072d4..fd3e74a 100644
--- a/login-utils/utmpdump.c
+++ b/login-utils/utmpdump.c
@@ -190,7 +190,7 @@ static void __attribute__((__noreturn__)) usage(FILE *out)
fputs(USAGE_HEADER, out);
fprintf(out,
- _(" %s [options]\n"), program_invocation_short_name);
+ _(" %s [options] [filename]\n"), program_invocation_short_name);
fputs(USAGE_OPTIONS, out);
fputs(_(" -f, --follow output appended data as the file grows\n"
--
1.7.7
--
To unsubscribe from this list: send the line "unsubscribe util-linux" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
