til/vim/using-global-command.md

The global command :g[lobal] is very powerful. It is used to execute a command matching a pattern. The syntax is

:[range]g/pattern/cmd

The default range is whole file. If you want to change the range here is a reference table for substitution.

Range	Description	Example
28	line 28	:28s/bad/good/g
1	first line	:1s/bad/good/g
$	last line	:$s/bad/good/g
%	all lines in a file (same as 1,$)	:%s/bad/good/g
6,28	lines 6 to 28 inclusive	:6,28s/bad/good/g
11,$	lines 11 to end of the file	:11,$s/bad/good/g
.,$	current line to end of the file	:.,$s/bad/good/g
.+1,$	line after current line to end	:.+1,$s/bad/good/g
.,+4	current to current+5 line, inclusive)	:.,.+4s/bad/good/g
?a?,/b	between patterns a and b, inclusive)	:?a?,/b/s/bad/good

Example global commands:

• :g/error/d - delete all lines containing string error
• g!/important/d - delete all lines not containing string important
• 4,10t15 - copy all lines between 4 and 10 to line 15
• 4,10m15 - move all lines between 4 and 10 to line 15
• :5,18g/^foo/normal 0df= - run normal command 0df= on the lines between 5 and 18 which starts with string foo