Mac OS X Tiger in a Nutshell

Interacting with the Shell

Command	Action
:r file	Read in contents of file after cursor.
:r !command	Read in output from command after current line.
:nr !command	Like preceding, but place after line n (0 for top of file).
:!command	Run command, then return.
!object command	Send object, indicated by a movement command, as input to shell command command; replace object with command’s output.
:n1,n2! command	Send lines n1 through n2 to command; replace with output.
n!!command	Send n lines to command; replace with output.
!!	Repeat last system command.
!!command	Replace current line with output of command.
:sh	Create subshell; return to file with EOF.
Ctrl-Z	Suspend editor; resume with fg.
:so file	Read and execute ex commands from file.