Perl 2, released in 1988, featured a better regular expression engine.Perl 3, released in 1989, added support for binary data streams.simply my objective is to know for how many weeks each devices are matched.
It is generally speaking better to ask for all the objectives at once here at Stack Overflow, rather than trying to puzzle together the solution piece by piece.
I think what you are asking for requires a new question, preferably with some sample input/counter on you solution show how many items are matched my objective is the counter for how long it's matched.
Since then, it has undergone many changes and revisions.
Perl 6, which began as a redesign of Perl 5 in 2000, eventually evolved into a separate language.
More people download scripts from that site, assuming that the most popular site must have the highest quality scripts and that the popular sites end up becoming more popular.
At no point does any kind of quality control enter into the process. If the scripts from a particular site just didn’t work at all, then word would soon get out and that site’s scripts would become unpopular.
Many people’s first experience of Perl comes when they download a free CGI script from the web.
In this article Dave Cross discusses why that might be a bad way to start.
Originally, the only documentation for Perl was a single lengthy man page.
In 1991, Programming Perl, known to many Perl programmers as the "Camel Book" because of its cover, was published and became the de facto reference for the language.
People have a small Web site and one day they decide that they need a guest book, a form mail script or a hit counter. Our Web site owner will visit one of these sites, find the required scripts and install them on his site. An important factor that Google takes into account when displaying search results is the number of links to a given site.