#!usr/bin/perl

use strict;

##</code><code>##

# This is a program which reads in a list of file names from the command 
# line and prints which files are readable, writable and/or executable,
# and whether each file exists.

##</code><code>##

 while ($i < scalar(@ARGV)) {
	open(MYFILE, $ARGV[$i]) or die("Error: cannot open file '$ARGV[$i]'\n");

##</code><code>##

 	print "$ARGV[$i] is readable!\n" if -r MYFILE;
	print "$ARGV[$i] is writable!\n" if -w MYFILE;
	print "$ARGV[$i] is executable!\n" if -x MYFILE;
	print "$ARGV[$i] exists!\n" if -e MYFILE;
	$i++;

##</code><code>##

 } # end while

##</code><code>##

#!/usr/bin/perl

use strict;
use warnings;
use 5.010;

for my $file (@ARGV) {
    -e $file or next;
    say "`$file' exists!";
    say "`$file' is ", ( $_->[1]() ? "" : "not " ), $_->[0]
    for [readable   => sub () { -r _ }],
        [writable   => sub () { -w _ }],
        [executable => sub () { -x _ }];
}

__END__