COMP 2400 Software Tools

Goals: Becoming familiar with the editor vi

• input mode versus command mode
• Navigation
  --Vertical
    (j,k,cntl+f, cntl+b,#g, and arrow keys)
  --Horizontal
    (0, $, h,l,cntl+b, cntl+w, and arrow keys)
• units of text
   { -- beginning of paragraph
   { -- end of paragraph
• yy - yank one line (usually followed by p, to put)
• dd - delete line
• to substitute throughout the file
    :%s/oldpattern/newpattern/
• se nu //line numbers
  se nonu //no line numbers
• :wq or ZZ in command mode to write and exit
  :q! to exit without saving the changes

Useful Links:

• vi quick reference quide
• UNIX Tutorial for Beginners