Alter Aeon Online Help

Keywords are:  'alias args arguments'

Up to 9 arguments may be used in aliases, each space delimited.  Inside the
alias, arguments are referenced by using $1 through $9, with $0 and $* both
representing all arguments.  Additionally, a 'shift' command is available
inside aliases to shift higher arguments down to lower ones.

Here is a sample alias 'healtwo' that takes arguments:
say I will now heal $*
cast heal $1
shift 1
cast heal $1

The first line says all the arguments that the alias is invoked with.

The second line attempts to cast heal using the first argument as a target.

The third line shifts the arguments left by one.  This means that the
    second argument now becomes the first.

The fourth line attempts to cast heal using the first argument as a target,
    but since we shifted the arguments it will not hit the same target as
    the second line.