Delete lines {first} to {last} (inclusive) from buffer {buf}. If {last} is omitted then delete line {first} only. On success 0 is returned, on failure 1 is returned.

This function works only for loaded buffers. First call bufload() if needed.

For the use of {buf}, see bufname() above.

{first} and {last} are used like with getline(). Note that when using line() this refers to the current buffer. Use "$" to refer to the last line in buffer {buf}.

Can also be used as a method:

GetBuffer()->deletebufline(1)