Dear All,
Using Oracle version On AIX 5.3

I have two queries,

1. In README for 5496862 patch following lines are written, what they mean? I have applied Opatch and Patch 4081980 in Oracle environment.
"Your system configuration (Oracle Server version and patch
# level, OS Version) must exactly match those in the bug
# database entry - You must have NO OTHER PATCHES installed on
# your Oracle Server since the latest patch set (or base release
# x.y.z if you have no patch sets installed).

2. Further in read me for 5496862 patch, I am not getting meaning of following line.
"Ensure that the directory containing the opatch script appears in
your $PATH; then enter the following command:

% opatch apply

If possible explain with example.