How do you add Read more ...link to a particular post or to all posts in a blog ?
Read more links usually appear under following conditions:
- Template uses
the_content()function for display.
- Post has
<--more-->tag in content, which creates
teaser, followed by
read more link.
Sometimes such links are created artificially by appending them to output of
the_excerpt() function in template.
So to precisely answer your question - it depends on your template tags and how you use
See post (by me) for writeup on excerpt/teaser differences and mechanics.