Useing of 'vi'

 I think I've got the hang of it now .... :w  :q  :wq  :wq! ^d  X exit 
  X Q  :quitbye  CtrlAltDel   ~~q  :~q  logout  save/quit :!QUIT ^[zz ^[ZZ 
ZZZZ  ^H  ^@  ^L  ^[c  ^# ^E ^X ^I ^T  ?  help  helpquit ^D  ^d ^C ^c help
   exit ?Quit ?q


                        How to program in "C"
                        ---------------------
1] Use lots of global variables.
2] Give them cryptic names such as: X27, a_gcl, or Horace.
3] Put everything in one large .h file.
4] Implement the entire project at once.
5] Use macros and #defines to emulate Pascal.
6] Assume the compiler takes care of all the little details you didn't
   quite understand.


                        How to debug a "C" program.
                        ---------------------------
1] If at all possible, don't.  Let someone else do it.
2] Change majors.
3] Insert/remove blank lines at random spots, re-compile, and excecute.
4] Throw holy water on the terminal.
5] Dial 911 and scream.
6] There is rumour that "printf" is useful, but this is probably unfounded.
7] Port everything to CP/M.
8] If it still doesn't work, re-write it in assembler.  This won't fix the 
bug, but it will make sure no one else finds it and makes you look bad.