DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:from:date
	:message-id:subject:to:content-type; q=dns; s=default; b=e51bFis
	qAB16UrXeZQGzqI7xFAeJMJS7f0TAOSS1H4a6K4J1ilrFB0ELKwDXQ7wyW2KcCKX
	MwQxewJyUyQ7c/HFlFkmIEPj8qaNyxkf82sg6rpCHwKeScM7Pn5XSGOJmDWLf/Zl
	eAE6xne9q6uPaVBc0f0P9Ke/PKN6175IP6Yc=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
MIME-Version: 1.0
In-Reply-To: <d846545ebaa5469d90f01f84e4f48c3d@vsrv060ex01.ssd.fsi.com>
References: <d846545ebaa5469d90f01f84e4f48c3d@vsrv060ex01.ssd.fsi.com>
From: Lee <ler762@gmail.com>
Date: Thu, 21 Feb 2019 11:18:13 -0500
Message-ID: <CAD8GWsvqXdG-2YvmVAqW=jkZ_ejHGOj=LCemjoqkF08Vy7i=Fw@mail.gmail.com>
Subject: Re: bash string-operator problem
To: cygwin@cygwin.com
Content-Type: text/plain; charset="UTF-8"

On 2/21/19, Rockefeller, Harry  wrote:
> CYGWIN_NT-6.1 HARRYR-PC 3.0.0(0.336/5/3) 2019-02-16 13:21 x86_64 Cygwin
> GNU bash, version 4.4.12(3)-release (x86_64-unknown-cygwin)
>
> #!/bin/bash
> A="A"
> B="A"
> if [ $A!=$B ]; then          <----- needs spaces around the !=
>     echo -e "not identical"
> fi
> if [ $A==$B ]; then         <------ needs spaces around the ==
>     echo -e "identical"
> fi
> exit 0
>
> Running this script gives
> not identical
> identical
>
> Both tests are true.

because you're testing "A==B"
you need to give 3 parameters  "A"  "=="  "B"

$ cat x
#!/bin/bash
A="A"
B="A"
if [ $A != $B ]; then
    echo  "not identical"
fi
if [ $A == $B ]; then
    echo  "identical"
fi
if [ A!=B ]; then
    echo  "not identical"
fi
if [ A==B ]; then
    echo  "identical"
fi

Lee

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple