Navigating the Quickfix list

:cc[!] [nr]   Display error [nr], or current error if [nr] is omitted
:cn           next error
:cN           previous error
:cl           show quickfix list 
:cw           show quickfix list in new frame.
:cnf          jump to the next file in the list that includes a file name.          in quicklist frame, jump to current line error in 
              primary editor window (return does the same thing)