[SOLVED] Is there an assymetrical diff option or command on GNU/linux?

Issue

is there a version of diff that runs

diff a.txt b.txt

and shows only lines in a.txt that are not in b.txt or lines in a.txt that are modified versions of lines in b.txt.

(I am running GNU/linux mint, but I presume this to be of little relevance)

Solution

Yes.

diff --changed-group-format='%>' --unchanged-group-format='' /tmp/a /tmp/b 

Answered By - Ярослав Рахматуллин

Answer Checked By - Timothy Miller (WPSolving Admin)