I'm writing an address book (simple; just names and email addresses) both for my amusement and to learn more Perl. I've fought with this for a few hours and decided to seek professional help: I'm able to enter new entries, as the code will show, but I can't figure out how to remove entries from the outside file, called addybook.adb. What's the simplest, but reasonably effective way to do this? The code is as follows:

#!/usr/bin/perl -w

use strict;

# Declare yon variables
my $ent;
my $line;
my @entry;
my @lname;
my @fname;
my @email;
my $addfname;
my $addlname;
my $addemail;
my $addstring;
my @addtemp;
my $t_entry;
my $option;
my $x;

$x = 1;
while ($x == 1) {
    system "cls";
    print "\nAddress Book\n------------\n";
    print "Options:\nL for list\nA for add entry\nR for remove entry\n
+S for search\nQ to quit\n";
    chomp ($option = <STDIN>);
    if ($option eq "l") {
        &entrylist;
    } elsif ($option eq "a") {
        &addentry;
    } elsif ($option eq "r") {
        &unavailable; #&removeentry;
    } elsif ($option eq "s") {
        &unavailable; #&search;
    } elsif ($option eq "q") {
        $x = 2;
    } else {
        print "Invalid Entry!";
    }
}

sub entrylist {
system "cls";
### Open the filehandle for the address database, sort it.
open ADDYBASE, "addybase.adb"
   or die "\nRequired source database file does not exist!";
foreach (<ADDYBASE>) {
    $ent++;
    chomp ($line = $_);
    @entry = split /:/, $line;
    
    # Now that they're separated, store them into individual arrays
    $t_entry = pop @entry;
    push (@email, $t_entry);
    $t_entry = pop @entry;
    push (@fname, $t_entry);
    $t_entry = pop @entry;
    push (@lname, $t_entry);
    }
close ADDYBASE;
### Ensure you start at 0
$ent -=1;
for (0..$ent) {
    print "\n", $lname[$_],", ", $fname[$_], " -- ", $email[$_];
   }
&orquit;
}

sub orquit {
    print "\n\nPress enter to continue, enter Q to quit\n";
    chomp ($option = <STDIN>);
    $x = 2 if ($option eq "q");
}

sub unavailable {
    print "This function is not yet available.  Sorry.";
    &orquit;
}

sub addentry {
    open ADDYBASE, ">>addybase.adb";
@addtemp = undef;
system "cls";
print "First name?\n";
chomp ($addfname = <STDIN>);
push (@addtemp, $addfname);
print "\nLast name?\n";
chomp ($addlname = <STDIN>);
push (@addtemp, $addlname);
print "\nEmail address?\n";
chomp ($addemail = <STDIN>);
push (@addtemp, $addemail);
$addstring = (join ":", @addtemp);
print ADDYBASE ("\n", $addstring);
close ADDYBASE;
}
[download]

Thanks in advance!

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