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.. RST source for alfsum(1) man page. Convert with:
.. rst2man.py alfsum.rst > alfsum.1
.. include:: ver.rst
.. |date| date::
======
alfsum
======
-----------------------
calculate ALF checksums
-----------------------
:Manual section: 1
:Manual group: Urchlay's Atari 8-bit Tools
:Date: |date|
:Version: |version|
SYNOPSIS
========
alfsum **file** [**file** ...] | [**--help** | **-h**] | [**--version** | **-V**]
DESCRIPTION
===========
**alfsum** calculates the checksums used by the **ALF** compression
utility on the Atari 8-bit platform.
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)).
**alfsum**'s primary use is to check files extracted from **ALF**
archives against the checksums stored in the archive. The **unalf**
program already does this, but **alfsum** is a separate (much simpler)
program. It serves as a second opinion, in case you suspect a bug in
**unalf**.
OPTIONS
=======
-h, --help
Show built-in help message.
-V, --version
Show **alfsum** version number and exit.
NOTES
=====
The checksum algorithm is very simple: all the bytes in the file are
added together, and the low 16 bits of the result are the checksum.
EXIT STATUS
===========
0
Success.
1 to 254
File I/O error count. If there are more than 254 I/O errors, 254 is returned.
255
Error in command-line arguments: no filenames given.
COPYRIGHT
=========
**alfsum** is released under the WTPFL: Do WTF you want with this.
AUTHORS
=======
B. Watson <urchlay@slackware.uk>
SEE ALSO
========
**unalf**\(1)
.. include:: manftr.rst
|
