How to instal LAMP for Ubuntu 12.04 LTS? [closed]

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http://askubuntu.com – Possible Duplicate: What's the easiest way to set up a LAMP stack? I'm studying SQL database right now and I need a mySQL server. I was guided to use a LAMP server on Linux .. but I don't know how to install it on my Ubuntu 12.04 LTS ?!! I looked for previous situations like me and I found that I should install some software called tasksel .. but when I did .. something went wrong and it failed to install the LAMP server. So, please I need your help in this problem (HowTos)