Create schema with in a specific database from a script file

Hi,

I have to write script for psql in a xyz.sh file which should create a
schema in a specific data.In psql prompt I achieve it like --

postgres=# \c ABC

ABC=# create schema authorization myschema

In xyz.sh I executed the following script ---

*su -c "psql -c \"\c ABC \"" postgres*

*su -c "psql -c \"create schema authorization myschema\"" postgres*

In the terminal got message “connected to ABC database”. But schema created
with in postgres database not with in ABC database.

What should be the proper script ?

Thanks and Regards,

Abhra