Ambiguous output redirect
xfb52 at dial.pipex.com
Tue Sep 12 04:02:02 PDT 2006
> I don't understand why when I execute this script I have an
> "Ambiguous output redirect." ?
> p0f -l 'tcp dst port 25' 2>&1 | /usr/local/sbin/p0f-analyzer.pl 2345 &
One answer would be that this is bourne shell syntax and you shell is csh.
0f -l 'tcp dst port 25' |& /usr/local/sbin/p0f-analyzer.pl 2345 &
or change your shell to a bourne shell compatible one like bash.
PS In csh the ">&" means redirect to a file including stderr, in this
case the file "1"; then you are telling it to also pipe to something,
which is impossible since you just redirected to a file.
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