/pg/bin/createdb -U postgres -T tempdb
/pg/bin/psql -U postgres tempdb -c "drop schema public cascade;"
/pg/bin/pg_dump -s -n public  -U postgres  maindb > publicschemadump
/pg/bin/psql -U postgres tempdb < publicschemadump
/pg/bin/psql -U postgres temdb -c "Alter schema public rename to thepublicschemastructure;"
/pg/bin/pg_dump -s -n thepublicschemastructure  -U postgres  tempdb > thepublicschemastructuredump
/pg/bin/psql -U postgres maindb < thepublicschemastructuredump
/pg/bin/psql -U postgres maindb -c "Alter schema thepublicschemastructure rename to Somenewuserschema"