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Message-ID: <053001c3725a$bfe9cea0$c900000a@docbill002>
From: "Bill C. Riemers" <cygwin AT docbill DOT net>
To: "Garrison, Jim" <jim DOT garrison AT athensgroup DOT com>, <cygwin AT cygwin DOT com>
References: <732AC39DA54C1C4FBCBCC2F853D3AB816D16F9 AT athensgroup-pc9 DOT athensgroup DOT com>
Subject: Re: Strange cygpath/Perl 5.8 interaction?
Date: Wed, 3 Sep 2003 16:33:47 -0400
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It is not perl adding and extra line feed.  It is bash automatically
removing a line feed...

i.e.
    $ echo "|"`pwd`"|"
    |/tmp|
    $ pwd |od -t x1
    0000000 2f 74 6d 70 0a
    0000005

Bash will remove the \n for you automatically when using `pwd`, perl won't.
To tell perl to remove the trailing "\n" use the chomp function.

    $ perl -e 'chomp($a=`pwd`);print "|".$a."|\n";'
    |/tmp|

----- Original Message ----- 
From: "Garrison, Jim" <jim DOT garrison AT athensgroup DOT com>
To: <cygwin AT cygwin DOT com>
Sent: Wednesday, September 03, 2003 4:13 PM
Subject: Strange cygpath/Perl 5.8 interaction?


> In bash:
>
>   $ echo "\"`cygpath -w /c/temp`\""
>   "c:\temp"
>
>
> But in Perl:
>
>   $a = `cygpath -w /c/temp`;
>   print "|$a|";
>
> produces
>
> |c:\temp
> |
>
> I.e., Perl sees an extra \n at the end of the string. I looked at
> the source for cygpath and it doesn't seem to be adding a \n, so
> I suspect the problem is an unforeseen interaction between Cygwin
> and Perl's backtick operator.  Can anyone shed light on this topic?
>
> Jim Garrison
> jhg AT athensgroup DOT com
>
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