Note that "-e" can be used to get MAC addresses printed.

Note that "-e" can be used to get MAC addresses printed.

Also give more details on shell metacharacters in filter expressions -
in particular, note that a common use of a shell metacharacter is a
backslash used to escape protocol names, e.g. "ether proto \ip", and
that the alternative to quoting the entire expression is to escapet he
shell metacharacters, e.g.

	tcpdump ether proto \\ip