Pass parameters to SQL script

Hi,

is it possible to pass parameters to a SQL script, which I launch via the psql shell?

In Oracle it works like that:

        sqlplus myscript.sql myschema

and within the script I can use the parameter like this:
       
        CONCAT .
        CREATE TABLE &1..test (name VARCHAR2(100));

Is there a counterpart for PostgreSQL?

thanks,
Clemens