Try it on a directory with several files. You should see that you only get half the files in the directory.

Why is that? A little deparse gives us the answer: 

perl -MO=Deparse -n -e 'print "file is: ".<>;'

[download]
Should give us: 
LINE: while (defined($_ = <ARGV>)) {
    print 'file is: ' . <ARGV>;
}

[download]
So you see, every line of this loop, one filename is unshifted from ARGV going into $_, and one is unshifted and printed, making you miss the first, the third, etc.

What you need to do is something like 

ls dir | perl -n -e 'print "File is $_"'

[download]

You have moved into a dark place.
It is pitch black. You are likely to be eaten by a grue.

In reply to Re: Oddity...losing filename from stdin - very wierd by Dog and Pony
in thread Oddity...losing filename from stdin - very wierd by snafu

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