perldoc to read

`perldoc perlre` perldata, perlvar, perlfunc, perlsub, and perlref too

perl books one just have to read

modern perl http://www.onyxneon.com/books/modern_perl/index.html

impatient perl http://blob.perl.org/books/impatient-perl/iperl.htm

intermediate perl http://www.effectiveperlprogramming.com/

CGI::Session much easy

http://search.cpan.org/~sherzodr/CGI-Session-3.95/Session.pm

Apache SSL Certificate Without Passphrase

Remove Passphrase

openssl rsa -in server.key -out server.key.nopass

need to look in this http://mojolicio.us/

http://mojolicio.us/

creating a new directory in svn under branch

svn mkdir -m "Bug 4: new dir " http://yoursvnurl.com/ops/branch/new_folder

File::path - removing all files and directories keeping the root directory in place

keep_root => $bool

When set to a true value, will cause all files and subdirectories to
be removed, except the initially specified directories. This comes in
handy when cleaning out an application's scratch directory.

remove_tree( '/tmp', {keep_root => 1} );

removing duplicate files in a array

use List::MoreUtils qw(uniq);

my @dup_list = qw(1 1 1 2 3 4 4);

my @uniq_list = uniq(@dups);

check if database exist

#SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE
SCHEMA_NAME = 'DBName'

template toolkit

http://www.template-toolkit.org/docs/manual/Variables.html#section_List_References