<STDIN> doesn't read from the command line. The command line isn't even a stream. The command line is placed in @ARGV. If you're getting it via STDIN, typing 
$ foo.pl
/Users/me/Pictures/a b c d

[download]
is fine. If you're passing it via the command line, you'll need to convert the string into something a string literal your shell will interpret as the appropriate string. For bash, you can use 
$ foo.pl /Users/me/Pictures/a\ b\ c\ d
$ foo.pl '/Users/me/Pictures/a b c d'  # Use '\'' for single quotes
$ foo.pl "/Users/me/Pictures/a b c d"  # Will interpolate like Perl

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In reply to Re^7: File::Find problems by ikegami
in thread File::Find problems by 7stud

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