From b8adecaff1a80f8ca78744a78fd623299c544d6f Mon Sep 17 00:00:00 2001 From: Marco Hinz Date: Mon, 8 Feb 2016 14:56:16 +0100 Subject: [PATCH] Commands: :global --- CHANGELOG.md | 1 + README.md | 22 +++++++++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index b3032aa..bee5425 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -24,6 +24,7 @@ All notable changes to this project will be documented in this file. - Basics: [Undo tree?](README.md#undo-tree) - Commands: [:redir](README.md#redir) - Commands: [:normal and :execute](README.md#normal-and-execute) +- Commands: [:global](README.md#global) - Tips: [Saner command-line history](README.md#saner-command-line-history) - Tips: [Reload a file on saving](README.md#reload-a-file-on-saving) - Tips: [Smarter cursorline](README.md#smarter-cursorline) diff --git a/README.md b/README.md index 8680876..db3d193 100644 --- a/README.md +++ b/README.md @@ -76,6 +76,7 @@ Twitter](https://twitter.com/_mhinz_). Thanks! #### [Commands](#commands-1) +- [:global](#global) - Execute a command on all matching lines. - [:normal and :execute](#normal-and-execute) - The scripting dream team. - [:redir](#redir) - Redirect messages. @@ -1877,7 +1878,26 @@ set complete-=t " disable searching tags ## Commands -Useful commands that are good to know. +Useful commands that are good to know. Use `:h :` to learn more +about them, e.g. `:h :global`. + +#### :global + +Execute a command on all matching lines. E.g. `:global /regexp/ print` will use +`:print` on all lines that contain "regexp". + +Fun fact: You probably all know good old grep, the filter program written by Ken +Thompson. What does it do? It prints all lines matching a certain regular +expression! Now guess the short form of `:global /regexp/ print`? That's right! +It's `:g/re/p`. Ken Thompson was inspired by vi's `:global` when he wrote grep. + +Despite its name, `:global` only acts on all lines by default, but it also takes +a range. Assume you want use `:delete` on all lines from the current line to the +next blank line (matched by the regular expression `^$`) that contain "foo": + +```vim +:,/^$/g/foo/d +``` #### :normal and :execute