From: Weiqi Gao <weiqigao AT a DOT crl DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: a good expr for dos?
Date: Thu, 05 Aug 1999 19:59:39 -0500
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- carlo - wrote:
> 
> Can anyone recommend a good expr for dos?
> Preferebly one that will run on OpenDOS without csDPMI, however.
> I've found several good ones, but not yet one that will evaluate expressions
> like 3>1.

The one in
ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/shl112b.zip does
expressions like 3>1 just fine.  You simply have to note that the
greater than sign (>) is a special character for the shell and need to
be properly escaped.

In COMMAND.COM:
D:\TEMP> expr 3 ">" 1
1
D:\TEMP> expr 3 "<" 1
0

In bash:
/temp $ expr 3 \> 1
1
/temp $ expr 3 \< 1
0

-- 
Weiqi Gao
weiqigao AT a DOT crl DOT com