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Date:	Sun, 3 Dec 2006 12:03:03 -0800
From:	"Steven Levine" <steve53@earthlink.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Invoking OS/2 command file from within OS/2 REXX file

In <29093-38446@sneakemail.com>, on 12/03/06
at 11:28 AM, "Bob" <2lvvuss02@sneakemail.com> said:

>No need to go to all that trouble.

True enough.

>Just put the program name, and
>possibly any fixed parameters, in quotes and any variables outside the
>quotes.

>/* rexx */
>fromfile = 'c:\XYZ'
>tofile = 'd:\XYZ'
>'copy' fromfile tofile

FWIW, quoting strings is a good thing, but the quotes have nothing to do
with getting the shell to execute the command line. The shell will
execute whatever expression result it receives, which can have interesting
side effects. The quotes are needed only to avoid REXX syntax errors.
For the reckless

/* rexx */
fromfile = 'c:\XYZ'
tofile = 'd:\XYZ'
copy fromfile tofile

will do exactly the same thing.

An example of interesting side effects is long ago someone complained that
their system would intermittently start lotus 123. Turns out they had a
rexx script running in the background that contained the line

somefunc()

and bad luck had it that somefunc returned 123. :-)

Regards,

Steven

--
----------------------------------------------------------------------
"Steven Levine" MR2/ICE 2.67 #10183 Warp/eCS/DIY/14.103a_W4
www.scoug.com irc.fyrelizard.com #scoug (Wed 7pm PST)
----------------------------------------------------------------------

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