Usage:
Evaluates expression and
prints its value. This almost the same as
"/eval
/echo --
$$[expression]",
except that
{#} and
positional parameters ({1}, etc)
are not defined. If you neet to print a value of an expression that uses
positional parameters, use /result or
echo().
Example:
command: /set x=4
command: /expr x * 2
output: 8
See: expressions