I will point something out -
the -r/-R is for recursive, effecting all files and all sub directories. it took me a while to figure it out...
but, you can use it with mv and cp as well, if you want ot move an entire directy and contents
you can use rm -rf (f is for force) to remove everything and all directories without asking about write protected stuff.
sorry if this is redundant, but, im fairly new to linux, but now im starting to figure everything out, i hate to be in windows because i need to use the cmmand line. im finding it frar more effecient.