Hi again made a mistake in my explanation, part
" When you redirect a program's output, you may specifiy which output you want (stdin or stderr)." should read " When you redirect a program's output, you may specifiy which output you want (STDOUT or stderr)." stdin is used for inputs, i.e. file reads & keyboard strokes. Have nice day Maxime Ducharme Programmeur / Spécialiste en sécurité réseau ----- Original Message ----- From: "Maxime Ducharme" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "[EMAIL PROTECTED] Netsys. Com" <[EMAIL PROTECTED]> Sent: Tuesday, August 17, 2004 10:54 AM Subject: Re: [Full-Disclosure] cmd.exe bug in win2k sp4 in "for" loop > > Hi Aditya, > this is not a bug, but normal operation of > msdos command interpreter. > > There is a concept of different outputs for > normal output and errors. > > They are called "stdout" and "stderr". > > stdout = 1 > stderr = 2 > > When you redirect a program's output, you may > specifiy which output you want (stdin or stderr). > > By default stdout is used, so a "1" is added before > the redirections ">" or ">>". > > If you want to catch errors, you need to specify > stderr output like this : > > echo "ello" 2>>stderr.log > > You may also catch each of them like this : > > echo "ello" 1>>stdout.log 2>>stderr.log > > You may find more details here : > www.microsoft.com/windowsxp/home/using/productdoc/en/redirection.asp > > This is XP details, but I think it is the same behavior on NT, 2K and 2003. > > Have a nice day > > Maxime Ducharme > Programmeur / Spécialiste en sécurité réseau > > ----- Original Message ----- > From: Aditya, ALD [Aditya Lalit Deshmukh] > To: [EMAIL PROTECTED] Netsys. Com > Sent: Tuesday, August 17, 2004 1:31 AM > Subject: [Full-Disclosure] cmd.exe bug in win2k sp4 in "for" loop > > > On windows 2000 SP4 the command processor cmd.exe has a small bug in the for > loop see the attached image, this is making all the bat file go crazy with > the output see the selected potions.... > > is this a known bug, with a patch ? can it be reproduced on other NT/2k/XP/3 > versions of windows ? > > -aditya > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.netsys.com/full-disclosure-charter.html > _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
