How can I get the unix command diff show only added and deleted lines? If diff can't do it, what tool can?
I'm not sure this is possible as it will be hard to differentiate between changed, added and deleted lines.
Consider this file:
We edit it so it looks like this:
This is straightforward to generate. But if you ask
I had the same question. This function was my solution to obtain the maximum change line number (i.e. changes start with the letter '+'). After which I then loop through the diff file again line by line and do not send to the line processor until this triggers the line to process:
Here is the function: