Resources for learning the Sam Text Editor
First get to know the command language:
http://doc.cat-v.org/bell_labs/sam_lang_tutorial/sam_tut.pdf
I.e. learn to use Sam in the terminal with `sam -d`
Then study this article:
http://doc.cat-v.org/plan_9/4th_edition/papers/sam/
These articles are not hard to follow provided one takes one's time with them.
My cheat sheet:
https://9fans.topicbox.com/groups/9fans/T5a59d8c3b404b14d-Mcbaa0122bf6dba5f8794b600
My sam notes:
https://gist.github.com/gnarledgrip/3d973b8e710d898be5da18dd8c609534
If you like sam, you may also like vis a text editor that combines the strengths of vi and sam:
https://github.com/martanne/vis
My videos:
https://www.youtube.com/playlist?list=PLrKqIwwe6pFErYcQy5nI8Z6bV196RmI3G