This is somes personnals documentation build all long my career. You will find it only in the english version.
Sections
Manuals for commands man <cmd> : Open man page of command. space : go ahead page by page. b : go back page by page. q : quit. Enter : go line by line. /<word> : search a word in man. n : go to the next expression that you search. N : go back to search expression. man -k <key word> : look for in all man for your key...