# diff3

> Compare three files line by line.
> More information: <https://www.gnu.org/software/diffutils/manual/html_node/Invoking-diff3.html>.

- Compare files:

`diff3 {{file1}} {{file2}} {{file3}}`

- Show all changes, outlining conflicts:

`diff3 --show-all {{file1}} {{file2}} {{file3}}`
