Hi DBAs,

We tried to export dbs with os authentification to hide the password from the other users.

such as: exp userid=/ file=.........

We can export db successfully in this way.
But if the export is scheduled by cron, always failed. The error message is:

EXP-00056: ORACLE error 1017 encountered
ORA-01017: invalid username/password; logon denied
EXP-00030: Unexpected End-Of-File encountered while reading input
EXP-00000: Export terminated unsuccessfully

The oracle version is 9.2.0.3 on AIX.

Any input is appreciated.