Path: utzoo!mnetor!uunet!husc6!uwvax!umn-d-ub!umn-cs!ems!pwcs!elric!hawkmoon!det
From: det@hawkmoon.MN.ORG (Derek E. Terveer)
Newsgroups: comp.unix.xenix
Subject: Re: trouble with expr
Message-ID: <113@hawkmoon.MN.ORG>
Date: 7 Mar 88 14:03:54 GMT
References: <717@yabbie.rmit.oz>
Organization: One of the Eternal Champions - Richfield, Mn, USA
Lines: 20
Keywords: expr,sco xenix,bug(?)
Summary: you may need an escape..  try a backslash (see man page)

In article <717@yabbie.rmit.oz>, radjg@yabbie.rmit.oz (Jordan Green) writes:
> I have been trying to use expr(C) to do some integer manipulation and find
> that I cannot get the multiplication to work.
> expr 2 * 3
> simply returns
> 2 * 3

The man page states that multiplication is performed by escaping (using a
backslash) the asterisk.  Try this:

$ expr 2 \* 3
6
$ expr "2 * 3"
2 * 3
$ expr "2 \* 3"
2 \* 3
$ expr 2 * 3
expr: syntax error
-- 
Derek Terveer	det@hawkmoon.MN.ORG	uunet!rosevax!elric!hawkmoon!det