#!usr/bin/perl

use strict;

my $i = 0;

# 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.

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

 	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++;

 } # end while

close(MYFILE);