Show HN: $ (github.com)

Presumably you can't start your commands with "sh" either!

all shell expansions work as expected (even constructions like $(cmd)). I can't think of any other use where I start a command with a '$'.

Can you give me an example of a command where this wouldn't work? You can still do command substitution with `$`, as seen below:

    $(echo pwd) | $ xargs echo