Is there a command-line equivalent to kdiff3 that allows selective merging? [closed]

Question

kdiff3 is a GUI diff tool that allows you to create a diff of two/three files and selectively choose which lines make up the merged file. Is there a command-line equivalent?

Answer 1

You should try

vimdiff file1 file2

Ex :

You can select lines (from command mode to visual mode) with shift+v, copy with yy, paste with p and switch into files with ctrl+ww

See http://vimdoc.sourceforge.net/htmldoc/diff.html

Answer 2

Yes, vimdiff (quick tutorial linked) is quite good at it. Being part of VIM, you will have to learn the key strokes you need to accept or refuse changes.