From ebfad791508af77f7f8e942c88a6f5dc88bd6d41 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Tue, 18 Nov 2025 06:57:14 -0500
Subject: Improve alfsum usage a bit.

---
 src/alfsum.rst | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

(limited to 'src/alfsum.rst')

diff --git a/src/alfsum.rst b/src/alfsum.rst
index 69d8f8f..cf9c7d3 100644
--- a/src/alfsum.rst
+++ b/src/alfsum.rst
@@ -21,7 +21,7 @@ calculate ALF checksums
 SYNOPSIS
 ========
 
-alfsum **file** [**file** ...]
+alfsum **file** [**file** ...] | [**--help** | **-h**] | [**--version** | **-V**] 
 
 DESCRIPTION
 ===========
@@ -29,8 +29,19 @@ DESCRIPTION
 **alfsum** calculates the checksums used by the **ALF** compression
 utility on the Atari 8-bit platform.
 
-There are no options. Use **-** to read from standard input. Use
-**./-file** to read a file whose name begins with **-**.
+To read from standard input, use **-** as a filename
+
+Output lines have a tab separating the checksum and filename, for ease
+of scripting (e.g. with **cut**\(1) or **awk**\(1)).
+
+OPTIONS
+=======
+
+-h, --help
+   Show built-in help message.
+
+-V, --version
+  Show **alfsum** version number and exit.
 
 NOTES
 =====
@@ -48,7 +59,7 @@ EXIT STATUS
   File I/O error count. If there are more than 254 I/O errors, 254 is returned.
 
 255
-  Error in command-line arguments.
+  Error in command-line arguments: no filenames given.
 
 COPYRIGHT
 =========
-- 
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