Usage: %s [<option> ...] [<action>]
Options:
-a<debian-arch> set current Debian architecture.
-t<gnu-system> set current GNU system type.
-L list valid architectures.
-f force flag (override variables set in environment).
Actions:
-l list variables (default).
-e<debian-arch> compare with current Debian architecture.
-i<arch-alias> check if current Debian architecture is <arch-alias>.
-q<variable> prints only the value of <variable>.
-s print command to set environment variables.
-u print command to unset environment variables.
-c <command> set environment and run the command in it.
--help show this help message.
--version show the version.