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Note that "glob" splits its arguments on whitespace and treats
each segment as separate pattern. As such, "glob("*.c *.h")"
matches all files with a .c or .h extension. The expression
"glob(".* *")" matchs all files in the current working
directory.

#!/usr/bin/perl
use Modern::Perl;

...
for my $line(@arr) {
    say $line;
}

If what the angle brackets contain is a simple scalar variable (e.g., 
+<$foo>), then that variable contains the name of the filehandle to in
+put from, or its typeglob, or a reference to the same. For example:

    $fh = \*STDIN;
    $line = <$fh>;

If what's within the angle brackets is neither a filehandle nor a simp
+le scalar variable containing a filehandle name, typeglob, or typeglo
+b reference, it is interpreted as a filename pattern to be globbed, a
+nd either a list of filenames or the next filename in the list is ret
+urned, depending on context.