CPMCHATTR

Section: User commands (1)
Updated: June 16, 2008

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  NAME cpmchattr - change file attributes on CP/M files.

  SYNOPSIS

cpmchattr [-f format] image attrib file-pattern ...

Note: Wildcards like *.com should be preceded with the user number using a pattern like 0:*.com.

  DESCRIPTION

Cpmchattr changes the file attributes for files on CP/M disks.

  OPTIONS

-f
Use the given CP/M disk format instead of the default format.

For Apple II CP/M 80 users the cpmchattr command may have no practical effect. Try cpmchmod instead for setting read only attributes.

attrib Set the file attributes as given.

  FILE ATTRIBUTES - The file attribute string can contain the characters 1,2,3,4,s,a,N and M.

The meanings of these are:
1-4
The CP/M "user attributes" F1-F4. CP/M does not assign any meaning to these attributes, though MP/M does.
s
The file is a system file. This attribute can also be set by cpmchmod(1).
a
The file has been backed up.
N
Reset all attributes to zero. So the string "N1r" resets all attributes and then sets F1 and Read-Only.
M
Attributes after an M are unset rather than set. The string "12M34" sets atttributes F1 and F2, and unsets F3 and F4.

  RETURN VALUE - Upon successful completion, exit code 0 is returned.

This will likely only be of interest to programmers. In a Win32 system the exit code can be trapped in a batch file as an "ERRORLEVEL" or as a return value when run from another Win32 console program written in a language like C.

  ERRORS - Any errors are indicated by exit code 1.

This will likely only be of interest to programmers. In a Win32 system the exit code can be trapped in a batch file as an "ERRORLEVEL" or as a return value when run from another Win32 console program written in a language like C.

  FILES - diskdefs - CP/M disk format definitions

The diskdefs file is a plain ascii text file that serves as a database of disk and disk image format definitions. It can be reviewed for available CP/M formats and their names. For Apple II CP/M 80 users the disk image formats apple-do and apple-po are available.

For Apple II CP/M 80 users the cpmchattr command may have no practical effect. Try cpmchmod instead for setting read only attributes.

The possible locations where cpmtools first looks for the diskdefs file:

- Can vary depending on the preferences of the person who builds the cpmtools binaries (executables) from the source code.

- The location is also installation dependent and the diskdefs file may also have been renamed.

If it's not found the current (work) directory is then searched for a file called diskdefs.

On a unix-like system, a ${prefix}/share/ style path like /usr/local/share/ is a possible place that cpmtools will first look for diskdefs.

In a Win32 system sometimes unix-like shells like cygwin are used to run cpmtools instead of Windows cmd. For those installations unix-like conventions probably apply.

For cpmtools installations targetted at the average Windows user who does not have a unix-like shell and uses the Windows cmd prompt to run cpmtools there is no standard shared place that cpmtools will first look for diskdefs. Pathed File names like \cpm\diskdefs or even c:\cpmtools\diskdefs are possible.

  AUTHORS

This program is copyright 1997-2008 Michael Haardt <michael@moria.de> and copyright 2000, 2001 John Elliott <jce@seasip.demon.co.uk>.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

  SEE ALSO

cmpls(1), cpmchmod(1), cpm(5)


 Index

NAME cpmchattr - change file attributes on CP/M files.
SYNOPSIS
DESCRIPTION
OPTIONS
FILE ATTRIBUTES
RETURN VALUE
ERRORS
FILES
AUTHORS
SEE ALSO

Gradus ad Parnassum

An ugly version of this document was initially created by man2html on November 14, 2008 using the cpmtools version 2.8 manual pages then edited and reformatted by hand by Bill Buckels.

Caveat Emptor

The contents of this document are either part of cpmtools or provide additional information about using cmptools. You can redistribute it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

Bill Buckels has no warranty obligations or liability resulting from this document's use in any way whatsoever. If you don't agree then don't read it.