Interacting with the Shell (Linux in a Nutshell, 3rd Edition)

11.8. 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.
`:`n`r !`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 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.