According to:
https://oracle-base.com/articles/10g/oracle-data-pump-10g#expdp
passing authorization data we have pattern: [user]/[password]@[sid]
How to pass password with at (@) ? Such this is breaking a pattern and not work:
expdp scott/passw@rd@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=expdpEMP_DEPT.log
Quote like this:
expdp scott/\"passw@rd\"@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=expdpEMP_DEPT.log