(
: '
This text is a comment in both markdown and bash.
Note that we cant use # here because markdown tries to display it as a header - unless it starts with
#!, shebang. Instead we can use the bash no-op command ":" which is an alias for the bash command "true" -- see "man true".
truejust returns true and ignores the arguments so we can pass whatever we like. How this comment block works: in bash, [ ] wraps a
testcommand -- see
man test`.