!: command # VI temporarily left, shows the results of command execution ctrl + v # visual block select the highlighted block, and y is an operation such as reverse local copy; D is highlighted place delete / word # downwardly Find a word ? word look up the word # operation n # repeat on behalf of a find, that jumps to the next to find a location. N is backward # NOTE: If vi open the lower right corner you can see the current cursor line, then the character has a default vi replaced with vim.