swcarpentry/bc — pull request #412 by ethanwhite (2014-04-03 13:03:20+00:00)
Title: Remove discussion of ls -s and -h

This material doesn't seem to me to accomplish a lot with respect
to the objectives of the lesson and it adds a feeling of "the
shell is complicated" right up front by talking about how the
default output is confusing, showing a "human" flag that
presents things in bytes (which isn't *that* human friendly for
novices), and discussing how memory works.