In QNX4 the ‘cp’ command supported some extensions.
The one I’m most interested in is the option ‘-!P’.
Is there anyway to duplicate the cp -!Ppattern option in QNX6?
E.G.
don’t copy *.bak files
cp -!p*.bak this_dir/* that_dir
Bill Caroselli wrote:
In QNX4 the ‘cp’ command supported some extensions.
The one I’m most interested in is the option ‘-!P’.Is there anyway to duplicate the cp -!Ppattern option in QNX6?
E.G.
don’t copy *.bak files
cp -!p*.bak this_dir/* that_dir
I use find. For example:
cp find /this_dir -type f !-name "*.bak" that_dir
Wordier, but ultimately far more powerful and portable.
On Sat, 01 Nov 2003 08:48:24 +0000, Rennie Allen wrote:
Bill Caroselli wrote:
In QNX4 the ‘cp’ command supported some extensions.
The one I’m most interested in is the option ‘-!P’.Is there anyway to duplicate the cp -!Ppattern option in QNX6?
E.G.
don’t copy *.bak files
cp -!p*.bak this_dir/* that_dir
I use find. For example:
cp
find /this_dir -type f !-name "*.bak"that_dirWordier, but ultimately far more powerful and portable.
I have switched to
find [stuff] | pax -rw [destination_dir]
It has a few benefits:
- it doesn’t suffer from command-line length limitations
- you can use the -s option to pax to modify paths/filenames on the fly
Rob Rutherford
Oddly enough, that is exactly what we suggested in the QNX 4 manuals, which
in versions 4.23 and later listed these cp options as deprecated. Those cp
options had roots in the old QNX 2 ‘backup’ utility, whose functionality was
largely put into QNX 4’s cp. As soon as we had a clean break (i.e. moving to
QNX Neutrino), I ditched them since the same functionality is available in a
portable manner by using find | pax -rw. Sometimes less is more, and this is
one of those times: cp still suffers from a long and tortured history of
roots in some of the capabilities of QNX 2 utilities, meandering with
changing POSIX draft specifications in the late 80’s, being later ported to
Neutrino, etc. Hopefully no innocent ears will hear in your question a plea
for more functionality to be put into cp; it might dissuade them from
rewriting it, and we wouldn’t want that to happen. 
[off soapbox]
(http://www.qnx.com/developer/docs/qnx_4.25_docs/qnx4/utils/c/cp.html)
“Robert Rutherford” <ruzz@NoSpamPlease.ruzz.com> wrote in message
news:mord2h4yggis$.tfiv7so57aaz$.dlg@40tude.net…
On Sat, 01 Nov 2003 08:48:24 +0000, Rennie Allen wrote:
Bill Caroselli wrote:
In QNX4 the ‘cp’ command supported some extensions.
The one I’m most interested in is the option ‘-!P’.Is there anyway to duplicate the cp -!Ppattern option in QNX6?
E.G.
don’t copy *.bak files
cp -!p*.bak this_dir/* that_dir
I use find. For example:
cp
find /this_dir -type f !-name "*.bak"that_dirWordier, but ultimately far more powerful and portable.
I have switched to
find [stuff] | pax -rw [destination_dir]
It has a few benefits:
- it doesn’t suffer from command-line length limitations
- you can use the -s option to pax to modify paths/filenames on the fly
Rob Rutherford