Vi Commands

Moving the cursor

 * 1G start of file
 * nG go to line n''
 * G end of file
 * 0 goto start of line
 * $ goto end of line

Replacing text

 * :g/one/s//two/g replace one with two

Copy and paste

 * yy copy line
 * p paste line

Search

 * /searchTerm search forwards
 * ?searchTerm search backwards
 * n search next

Miscellaneous

 * u undo
 * J join current line with next line