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From: dwv%cadnet@UMIX.CC.UMICH.EDU (Doug Vander Wilt)
Newsgroups: comp.sys.apollo
Subject: AEGIS shell argument processing
Message-ID: <9106122153.AA06077@cadnet.micro.honeywell.com>
Date: 12 Jun 91 21:53:03 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 25

After many years programming with the AEGIS shell (/com/sh) I wonder if
I'm missing out on some easier argument processing methods.  Is there a
"shift" style command to shift arguments left?  I haven't had any success
referring to them with a variable index, e.g.: ^0 ^1 .. ^^n

I currently use the following form to process an unknown number of shell
arguments, but it won't properly handle quoted arguments:
(e.g.: $ argtest a 'b c' d )

#!/com/sh
# ARGTEST - test shell script arguments
eon
n := 0
args !* | while readln arg do
    n := ^n + 1
    args (("Argument " + ^n + ": " + ^arg))
enddo

BTW: the AEGIS shell is limited to 128 arguments (from: $ help limits)
which is 127 arguments not counting ((^0)) if you're interested.

Doug Vander Wilt
Sr. CAD/CAM Engineer
Honeywell MICRO SWITCH Division
dwv@cadnet.micro.honeywell.com