To install, follow the easy 1-2-3 steps: 

1. 
Create an install directory for export backup <...>/ora_export.

under ora_export, create following sub-directories: 

script
etc
operlog
operlog/<SID>
temp
temp/<SID>

Where SID is the actual ORACLE_SID name. If you have multiple
SIDs, then just create them under operlog and temp.

2. 
Copy the export backup script oraexport.ksh under script.
chmod 755 script/oraexport.ksh.

3.
Copy the sample configuration file "oraexport_STAR.cf" to 
etc/oraexport_SID.cf. If you have multiple SIDs,
then just create multiple files. 

Edit the oraexport_SID.cf per comments in the sample file. 

To run:

To run the export backup, enter the command: 

script/oraexport.ksh SID