cc0
Detailed Description of Normal Format
< from-file-line
< from-file-line ...
---
> to-file-line
> to-file-line ...
Add the lines in range r of the second file after line l of the first file. For example, '8a12,15' means append lines 12–15 of file 2 after line 8 of file 1; or, if changing
file 2 into file 1, delete lines 12–15 of file 2.
Replace the lines in range f of the first file with lines in range t of the second file. This is like a combined add and delete, but more compact.
For example, '5,7c8,10' means change lines 5–7 of file 1 to read as lines 8–10 of file 2; or, if
changing file 2 into file 1, change lines 8–10 of file 2 to read as lines 5–7 of
file 1.
Delete the lines in range r from the first file; line l is where they would have appeared in the second file had they not been
deleted. For example, '5,7d3' means delete lines 5–7 of file 1; or, if changing file 2 into file 1, append
lines 5–7 of file 1 after line 3 of file 2.