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Subject:	STDIN and STDOUT not connected to a terminal?
Date:	Mon, 10 Nov 2003 10:10:01 -0800
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From:	"Brown, Victoria" <vbrown AT ebay DOT com>
To:	<cygwin AT cygwin DOT com>
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Anyone??

-- Vicki

 -----Original Message-----
From: 	Brown, Victoria  
Sent:	Tuesday, November 04, 2003 12:19
To:	'cygwin AT cygwin DOT com'
Subject:	STDIN and STDOUT not connected to a terminal?



> Date: Wed, 15 Mar 2000 08:49:27 -0500
>References: <492568A3 DOT 0020F860 DOT 00 AT pwj-gw-n001 DOT pwj DOT co DOT jp>
>Using the current development snapshot I compiled up Perl 5.6.0 RC1 without any problems.
>However, I'm having problems with a very simple line of Perl:
>
>perl -le 'print q/foo/ if -t STDIN'


I am having a similar problem; here's the Perl script

#!/usr/bin/perl -w

if (-t STDIN) {
   print "STDIN OK\n";
} else {
    print "no STDIN?\n";
}

if (-t STDOUT) {
   print "STDOUT OK\n";
} else {
    print "no STDOUT?\n";
}


It results in
no STDIN?
no STDOUT?



Because STDIN and STDOUT do not appear to be attached to a terminal, I cannot run Active State's ppm program. ppm3-bin.bat checks if (-t STDIN and -t STDOUT)  and dies if the result is false.

This is Perl 5.8.0, newly installed.
The Problem occurs in both rxvt and the standard console shell.
BASH_VERSION='2.05b.0(1)-release'
CYGWIN='ntsec tty'

Theoretically this is the most recent cygwin version; I did a "reinstall". Not sure what to look at to prove the version #... if there is an environment variable I don't see it.

The folks at ActiveState cannot reproduce this problem; they _can_ run ppm with the latest version of cygwin bash.

Pointers appreciated. What do I need to change, install, uninstall... to cause Perl to believe that STDIN and STDOUT are connected to a terminal?


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