Thanks all, I understand now. --- Javier Gostling <[EMAIL PROTECTED]> wrote: > On Thu, 2002-06-06 at 20:04, The Gyzmo wrote: > > Why do you have to put '2>&1' after '/dev/null' > when > > piping something to /dev/null, like this:? > > > > [command] > /dev/null 2>&1 > > The "> /dev/null" redirects file descriptor 1 > (stdout) to /dev/null. > > The "2>&1" redirects file descriptor 2 (stderr) to > file descriptor 1 > (stdout, which was already redirected to /dev/null). > > The combined effect is to redirect both stdout and > stderr to /dev/null, > so that nothing goes to the terminal, unless the > program itself does > something funny with the file descriptors (not > likely). > > Cheers, > -- > Javier Gostling > Ingeniero de Sistemas > Virtualia S.A. > [EMAIL PROTECTED] > Fono: +56 (2) 202-6264 x 130 > Fax: +56 (2) 342-8763 > > Av. Kennedy 5757, of 1502 > Las Condes > Santiago > Chile
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