mnnst: Reads from a file or stdin and outputs only the lines that begin with at least a given number of whitespace characters.

w: Displays the users currently logged in on the system.

h: Outputs “–help\n” to stdout continuously until SIGINT is sent to it.

llns: Reads from a file or stdin and outputs the same lines with the line number prepended to them, optionally with padding zeroes.

ndn: Parses a file path and outputs the number of directories the file is nested in (absolute).

One of those is real btw.