I'm getting an error that "$cgi" requires an explicit package. wouldn't that be 'use CGI qw/:standard/;'?

#!/usr/local/bin/perl

use Data::Dumper;
use strict;
use CGI qw/:standard/;


my $value = $cgi->param('value');

open FILE , "facultydummy.txt" or die "Cannot open: $!";


#my $rowid = $ARGV[0] || '$roy';

my $rowid = $ARGV[0] || 'value';

my %data = ();
my @fields = split(/\t/, <FILE>);
chomp @fields;

while(<FILE>) {
    chomp;     
    my @row = split(/\t/);
    if ($row[0] eq $rowid) {
        @data{@fields} = @row;
        last;
    }        
}
 


print "Content-type: text/html\n\n";
if ( keys %data ) {
    # found, display data
    print Dumper \%data;
}
else {
    # not found, show error
    print STDERR "Can't find row '$rowid'\n";
}
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