$ db2 -u db2inst1 -w topSecret DB21002E The parameter for option "-u" specified after the "db2" command or in the DB2OPTIONS variable is missing or incorrect. $ db2 -help DB21001E The option "-h" specified after the "db2" command or in the DB2OPTIONS variable is missing or incorrect. $ db2 --help $The last one - no output at all - is among the most amusing.
And if you finally do get into the "db2" program and want to leave it:
$ db2 ... db2 => exit DB210334E The command was processed as an SQL statement because it was not a valid Comand Line Processor command. During SQL processing it returned: SQL0104N An unexpected token "END-OF-STATEMENT" was found following "exit". Expected tokens may include: "JOIN
". SQLSTATE=42601 db2 => quit DB2000000I The QUIT command completed successfully. $
Somehow, they still don't get it.