A note on all the $TOP directory of Oracle apps R12

The  $TOP is the top most directory or can be said as an important directory for all oracle apps R12 .In order to use these directories through "cd" command of linux,  we must the source the Environment variables .The two important Environment variables for a developer would be :

• [sid]_[HostName].env
• APPS[SID]_(HostName).env

Where are these two files located ?
- Its located at $APPL_TOP ie at  " d01/oracle/[SID]/apps/apps_st/appl  " .

How do you source the Environment variables ?
- sourcing is done by using a dot (.) followed by and then environment variable name

example : To source VIS_localhost.env :

           

.  VIS_localhost.env

Note : don't forget to leave a space between dot (.) and env file .

A list of $TOP directories and their paths :

1) $APPL_TOP  -  d01/oracle/[SID]/apps/apps_st/appl/

2) $JAVA_TOP -  d01/oracle/[SID]/apps/apps_st/comn/java/classes/

3) $(application_short_name)_TOP  -    d01/oracle/[SID]/apps/apps_st/appl/(application_short_name)/12.0.0

example : for application_short_name PER - ( human resource)

     $PER_TOP  -  d01/oracle/[SID]/apps/apps_st/appl/per/12.0.0

Last thing to mention is about , $ORACLE_HOME ,

4) $ORACLE_HOME  -  d01/oracle/[SID]/apps/tech_st/10.1.2

Note : SID and HostName varies from system to system