Use the Global Command in Vim

Today I learned about the global command in (n)vim, which allows you to run a command on multiple lines matching a pattern.

Let's say I want to remove all lines in a file matching pattern1. In command mode, I can do this with:

:g/pattern1/d_

(The vim :help file recommends using d_ to avoid clobbering registers, which will make it faster)

Any ex command is a valid command, and you can also execute normal mode commands with norm

:g/pattern1/norm {command}