Shell Programming and Scripting

###########################################
# BIND 9 name server configuration file 
###########################################

controls {
	inet 127.0.0.1 allow { localhost; } keys { "rndc-key"; };
};

zone "test.com" in {
	type master;
	file "db.test.com"; 
	notify yes; 
};

zone "brian.com" in {
	type master;
	file "db.brian.com"; 
	notify yes; 
};

zone "." in {
	type hint;
	file "db.cache";
};

zone "0.0.127.in-addr.arpa" in {
	type master;
	file "db.127.0.0";
};

computer:zonefiles brian$ ls -al ~/zonefiles
total 0
drwxr-xr-x   5 brian  brian  170 May 15 14:58 .
drwxr-xr-x  11 brian  brian  374 May 15 14:59 ..
-rw-r--r--   1 brian  brian    0 May 15 14:48 db.127.0.0
-rw-r--r--   1 brian  brian    0 May 15 14:48 db.brian.com
-rw-r--r--   1 brian  brian    0 May 15 14:48 db.test.com

#!/usr/bin/perl
#  Putting all of the zonefiles lised in named.conf into an array

my $srce = "named.conf.brian";
my $string1 = "db.";
open(my $FH, $srce) or die "Failed to open file $srce ($!)";
my @buf = <$FH>;
close($FH);
my @lines = grep (/$string1/, @buf); #grepping for db.
map {s/"//g; } @lines; #removing quotation marks
map {s/;//g; } @lines; #removing semicolon
#map {s/^.*file.*db.//g; } @lines; #removing file db.
map {s/^.*file //g; } @lines; #removing the word file
print @lines;
 
#  Putting listing of all of the files in /Users/brian/Documents/tmp/zonefiles directory into an array

#  Assigning variable to directory
my $directory = "/Users/brian/Documents/tmp/zonefiles/";

opendir(D, "$directory") || die "Can't opendir $directory: $!\n";
my @list = readdir(D);
closedir(D);

foreach my $f (@list) {
  print "$f\n";
}

computer:tmp brian$ ./brian.pl 
db.test.com 
db.brian.com 
db.cache
db.127.0.0
.
..
9
db.127.0.0
db.brian.com
db.test.com