A range permits a command to be applied to a group of lines in the current buffer. For most commands, the default range is the current line. For example: :s/old/new/g changes all old to new in the current line :11,15s/old/new/g changes lines 11 to 15 inclusive :%s/old/new/g changes all lines
![Ranges](https://cdn-ak-scissors.b.st-hatena.com/image/square/909f6e6dbdc89919adbd639ee366a4d2114bc96e/height=288;version=1;width=512/https%3A%2F%2Fstatic.wikia.nocookie.net%2Fucp-internal-test-starter-commons%2Fimages%2Fa%2Faa%2FFandomFireLogo.png%2Frevision%2Flatest%3Fcb%3D20210713142711)