Debian Command
$tasksel --list-tasks u desktop Debian desktop environment u web-server Web server u print-server Print server u database-server SQL database u dns-server DNS Server u file-server File server u mail-server Mail server u ssh-server SSH server u laptop Laptop u manual manual package selection $tasksel --task-packages Option task-packages requires an argument Usage: tasksel install tasksel remove tasksel [options] -t, --test test mode; don't really do anything --new-install automatically install some tasks --list-tasks list tasks that would be displayed and exit --task-packages list available packages in a task --task-desc returns the description of a task $tasksel --task-packages ssh-server task-ssh-server $
Debian Explanation
tasksel shows all available tasks and allows to user to select ones to install
computer science Theory Drop
A task is an execution path through address space.[1] In other words, a set of program instructions that are loaded in memory. The address registers have been loaded with the initial address of the program. At the next clock cycle, the CPU will start execution, in accord with the program. The sense is that some part of 'a plan is being accomplished'. As long as the program remains in this part of the address space, the task can continue, in principle, indefinitely, unless the program instructions contain a halt, exit, or return. source : http://en.wikipedia.org/wiki/Task_(computing)