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One of the oldest languages you can program in is CGI/Perl for
the internet.
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 WHAT
IS CGI AND PERL? |
CGI (Common Gateway Interface) is a very common word when web hosting is
mentioned. Frequently, but incorrectly, people usually ask web hosting
providers if they can run CGI scripts on their accounts. What they are actually
asking, albeit indirectly, is if they can use CGI to run computer programs on
their website.
CGI, in simple terms, is essentially an intermediary between a computer
script and the web site. It operates to take the information from the web page
and pass it to a computer script (program) and do whatever the computer program
says to do. CGI is not a computer language per se, but a common language in
which
different computer programs interact with the web pages (hence Common Gateway
Interface).
One of the recognized, and highly used, computer program languages which uses
CGI is Perl. Perl is a high level computer language which can manipulate files,
text and perform system operations with ease. Perl scripts are often used on
the web and quite frequently you hear about a very common perl script known as
"formmail."
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A formmail script is essentially a computer program
written in Perl which takes information from a web page and e-mails the
information to someone. This is accomplished when someone fills out a form on a
web page and presses a button. The button then starts the computer program (formmail)
which uses CGI to get the information from the webpage and e-mails the
information. Perl scripts have been written to do quite a lot of things on a web
site. Perl is a very powerful language. But it is not the only computer
language which can interact with a web page. Some others are ASP, PHP, C,
Python, etc.
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