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From: nvosd@nwnexus.WA.COM (UW West )
Newsgroups: comp.sys.sequent,comp.unix.shell
Subject: Korn Shell limitation/bug
Keywords: ksh Korn ATT SYSV
Message-ID: <418@nwnexus.WA.COM>
Date: 30 Oct 90 19:05:13 GMT
Organization: Northwest Nexus Inc.; Seattle, WA
Lines: 58


We're running a Sequent box here using Dynix 2.0v2, and are seeing an
"interesting" problem with the korn shell.  The following script fails
on the 12th iteration of the inner loop (fails = the script just stops).

counter=0
x=0

while [ $x -lt 100 ]
    do
    x=`expr $x + 1`
    echo "$x                                                "
    done |
	{
	while read field1 
	    do
	    counter=`expr $counter + 1`

	    echo "line $counter"

	    rm -f 1
	    rm -f 2
	    rm -f 3
	    rm -f 4
	    rm -f 5
	    done
	}


Here is the result of a "what /bin/ksh":

/bin/ksh:
	Version 11/16/88
	yp_match.c 1.1 86/02/03 Copyr 1985 Sun Micro
	yp_bind.c 1.1 86/02/03 Copyr 1985 Sun Micro
	pmap_clnt.c 1.1 86/02/03 Copyr 1984 Sun Micro
	clnt_perror.c 1.1 85/05/30 Copyr 1984 Sun Micro
	ypprot_err.c 1.1 86/02/03 Copyr 1985 Sun Micro
	ypv1_xdr.c 1.1 86/02/03 Copyr 1985 Sun Micro
	ypxdr.c 1.1 86/02/03 Copyr 1985 Sun Micro
	clnt_udp.c 1.1 86/02/03 Copyr 1984 Sun Micro
	auth_none.c 1.1 86/02/03 Copyr 1984 Sun Micro
	pmap_getport.c 1.1 86/03/02 Copyr 1984 Sun Micro
	pmap_prot.c 1.1 85/05/30 Copyr 1984 Sun Micro
	rpc_prot.c 1.1 86/02/03 Copyr 1984 Sun Micro
	xdr.c 1.1 86/02/03 Copyr 1984 Sun Micro
	xdr_mem.c 1.1 85/05/30 Copyr 1984 Sun Micro
	xdr_reference.c 1.1 85/05/30 Copyr 1984 Sun Micro

the same script works fine under PTX, and also works on a Pyramid
with OSx.

Anyone got any ideas?

Thanks!

Clay Jackson - US WEST NewVector Group
{...uunet!nwnexus!nvosd | ..uunet!uswnvg!cjackso | clayj@cjsysv.wa.com }