What is Tasksel in Ubuntu?

Tasksel is a Debian/Ubuntu tool that allows you to install multiple related packages as coordinated “tasks” onto your server. For example, instead of going step-by-step and installing each part of a LAMP stack, you could have Tasksel install all the parts of the LAMP stack for you in a single keystroke.

Should I use Tasksel?

tasksel is more powerful in processing and selecting tasks. It can execute extra scripts before/after installation/removal of tasks. And the biggest benefit: You can modify tasks and create new ones very easily. It is not possible to edit an official package list file without drawbacks (valid signature).