in reply to Re^2: <> oddity ?
in thread <> oddity ?
you're right
from perlop
The null filehandle <> is special: it can be used to emulate the behavior of sed and awk. Input from <> comes either from standard input, or from each file listed on the command line. Here’s how it works: the first time <> is evaluated, the @ARGV array is checked, and if it is empty, $ARGV[0] is set to "-", which when opened gives you standard input. The @ARGV array is then processed as a list of filenames. The loopwhile (<>) { ... # code for each line }
is equivalent to the following Perl-like pseudo code:
unshift(@ARGV, '-') unless @ARGV; while ($ARGV = shift) { open(ARGV, $ARGV); while (<ARGV>) { ... # code for each line } }
Cheers Rolf
( addicted to the Perl Programming Language)
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