Vim indentation tips

Some Vim indentation tips to collect here mainly as a reminder. Note that the amount of spaces used for indentation is mainly governed by the variable shiftwidth.

• Moving around (aka, prelude to action): 
• H to top of screen, L to bottom, M to middle. Then use nG to go to line n, G alone to bottom of file, gg to top of file.
• Go visual pressing v then move around to selct text. Once happy, you can copy (yy) or delete (dd) the selected text. 
• Indent text (visual mode):
• in command mode, press v then move cursor around (text will be highlighted), then press > to indent the highlighted text.
• Indent text (markers):
• position yourself then place a marker with ma, then move down to your block end and type >'a (a can be replaced with another valid character)
• Indent text (fixed):
• to indent current line type >>
• to de-indent current line type <<
• to indent 10 lines from the current one use 10>>
• ... you get the gist ...
• to indent lines from 10 to 20 type :10,20>

Some variables you can add to your .vimrc:

set shiftwidth=5    #Indent by 5 spaces when using >>, <<, etc.
set softtabstop=5   #Indent by 5 spaces when pressing
set autoindent      "Keep indentation from previous line

All of this is tested/verified for vim, not sure about vi.