If you are just removing the directory, use the command: rmdir dir-name The dir-name directory has to be empty for this to work. If there are files or other subdirectories then use the command: rm...
There is no standard "list" for Unix/Linux; the 'man' command in various forms will give you lists of commands based on what you might specify (e.g. man disks). Then again, it is a different question...