RE: QzshSystem API

<sheepishly>
There's a COPY command?
</sheepishly>

Thanks, I knew there had to be simpler way!

Joel
http://www.rpgnext.com


On Wed, 2003-09-03 at 17:06, Walden H. Leverich III wrote:
> >Copying a directory and it's contents in a supported file
> >system from an application written in a native language should be easy,
> >period.
> 
> OK, and the OS/400 COPY command doesn't work for what reason?
> 
> -Walden
> 
> ------------
> Walden H Leverich III
> President
> Tech Software
> (516) 627-3800 x11
> (208) 692-3308 eFax
> WaldenL@xxxxxxxxxxxxxxx
> http://www.TechSoftInc.com
> 
> Quiquid latine dictum sit altum viditur.
> (Whatever is said in Latin seems profound.)
>  
> 
> -----Original Message-----
> From: Joel Cochran [mailto:jrc@xxxxxxxxxx] 
> Sent: Wednesday, September 03, 2003 4:33 PM
> To: RPG programming on the AS400 / iSeries
> Subject: RE: QzshSystem API
> 
> 
> Scott wrote:
> 
> > According to the documentation to the QzshCheckShellCommand() API:
> > 
> >     The QzshCheckShellCommand() function finds the specified shell command
> >     by searching:
> > 
> >         * for a built-in utility, then
> >         * in each directory in the list specified by path or the PATH
> >             environment variable in turn.
> > 
> >     An application can use QzshCheckShellCommand() to verify that command
> >     exists and the user has authority to command before running it.
> > 
> > This seems to match exactly your experiences.  It says that it searches
> > for a command called 'ls' in the paths specified in the 2nd parm.   That
> > works, because it finds a command called 'ls'
> > 
> > In your second example, it's looking for a command called 'ls -l'.  There
> > is no command by that name (and there shouldn't be!!!) so the API is
> > worked as designed.
> > 
> > You seem to expect QzshCheckShellCommand() to validate the syntax of
> > the parameters of the command -- it doesn't do that.  It just looks for
> > a command.   It is valid in Unix (but a bad idea!) for command names to
> > have spaces in them.
> > 
> 
> All valid points: I reverted to the ls example because that is about as
> basic as it gets.  I was merely sharing the fact that ls -l didn't work,
> and it makes perfect sense to me that it does not.  So I'll concede that
> the CheckShellCommand API is working as designed.
> 
> 
> > > Unfortunately I need to get this done, so I guess I'll have to try to
> > > issue the command the old fashioned way with system or QCMDEXC.  The
> > > problem is that when I do that within a program the user is prompted to
> > > press Enter to close the shell.  I need to make this transparent to the
> > > user, but the command doesn't appear to have a 'quiet' mode.
> > 
> > Well, for mkdir you could just use the API... that'd be much easier...
> 
> If the API worked to issue the mkdir command then this entire thread
> would never have started.  I began by using QzshSystem() to try and
> simply create a directory.
> 
> // some good stuff deleted
> 
> > In order to make it run without using STRQSH, you'd have to set up the
> > descriptors 0,1,2 which are expected to always work for a Unix program.
> > RPG doesn't do that for you by default (though, ILE C or Java probably do)
> 
> Now I think we're getting somewhere.  I stupidly assumed that the API
> would handle the necessary grunt work so that I could issue QSH
> commands.
> > 
> > Here's a message that I posted in the past that relates to dealing with
> > opening those descriptors.  In fact, you may find that entire thread
> > to be instructive.
> >    http://archive.midrange.com/rpg400-l/200204/msg00195.html
> 
> I read that post prior to starting this thread but I thought you were
> trying to write to standard out specifically, and since I didn't need to
> do that (or so I thought) I didn't try to implement that.  I'll be back
> at the drawing board after this to figure that otu.
> 
> > > This is really getting frustrating for something that should be
> > > simple...
> > 
> > Keep in mind that you're trying to use a programming language that doesn't
> > exist in Unix environments to run Unix commands on a non-Unix system.
> > It doesn't seem to me that it should be simple.  (Though, it'd be nice if
> > it were!)
> 
> Maybe I'm too basic for this work.  It doesn't matter to me if the
> commands are Unix or not, in fact I think they should be native OS/400
> commands.  Copying a directory and it's contents in a supported file
> system from an application written in a native language should be easy,
> period.  I'm using the Unix style commands and QSH because I have
> basically no other option.
> 
> I think at this point my frustration level is high enough to call it a
> day.  I'll get back to this tomorrow.
> 
> I really do appreciate everyone's input.
> 
> Thanks, 
> 
> Joel
> http://www.rpgnext.com
> 
> 
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