My name is Vitaliy Mogilevskiy — I started working with ORACLE Products in 1996. What you will find here is what works for me day in day out - 24×7×365 - simple ORACLE DBA Tools written using components that are available on every Unix platform with an ORACLE database — sqlplus and KSH.
PS: Please do not email your questions — I will be glad to help you using the Ask DBA.