SQL
SQL> create directory filedir as '/u01/app/oracle/dbdir';
Directory created.
SQL> grant read, write on directory filedir to pbadmin;
SQL> create user pbadmin2 identified by mit;
User created.
SQL> grant create session, resource to pbadmin2; SQL> grant read, write on directory filedir to pbadmin2;
SQL> grant create session, resource to pbadmin2; SQL> grant unlimited tablespace to pbadmin2;
COMMAND LINE
$ expdp pbadmin/mit DUMPFILE=pbadmin.dmp DIRECTORY=filedir SCHEMAS=pbadmin
$ impdp pbadmin2/mit dumpfile=pbadmin.dmp directory=filedir remap_schema=pbadmin:pbadmin2