Some commands, unsorted, written down when I found something interessting

See definition of a variable:

[ i

Good article: https://begriffs.com/posts/2019-07-19-history-use-vim.html

Check if two lines differ:

• mark them with v

  :sort u

• if only one line stays, they are the same
• press u to undo

Create Columns

columns with delimiter ","

:%!column -t -s','