#!/usr/bin/perl

package MyFH;

sub TIEHANDLE {
    my $class = shift;
    return bless { @_ }, $class;
}

sub READLINE {
    my $self = shift;
    print "reading line from remote file $self->{file} ...\n";

    # ... (your implementation here)

    my $line = "foo\n";
    my @lines = ("foo1\n", "foo2\n");

    return wantarray ? @lines : $line;
}

sub PRINT {
    my $self = shift;
    print "writing line(s) to remote file $self->{file} ...\n";

    # ... (your implementation here)

    print "wrote: @_\n";
}


package main;

use Symbol 'gensym';

my $fh = gensym();  # get ref to anonymous glob

tie *$fh, "MyFH",  "file" => "foo.txt";

my $line = <$fh>;
print "read: $line\n";

print $fh "bar", "baz";

##</code><code>##

reading line from remote file foo.txt ...
read: foo

writing line(s) to remote file foo.txt ...
wrote: bar baz