How to get Version of Programs, Files, and Objects

Oracle Applications:
To obtain version of form from any applications form, navigate to the form. Then in the Menu tool bar .
Help --> About Oracle Applications
Or
select release_name from fnd_product_groups;

Database Objects:
select text from user_source where name='&package_name' and text like '%$Header%';

Views:
select VIEW_NAME, TEXT 
from 
USER_VIEWS 
where VIEW_NAME = '&VIEW_NAME';

Oracle Workflow:
$FND_TOP/sql/wfver.sql
OR
select TEXT from WF_RESOURCES where NAME='WF_VERSION';

Unix:
uname -a

Windows:
Start => Parameters => Control Panel => System

Java:
java -version 

Sqlplus :
start --> Run --> cmd
sqlplus 

TnsPing:
start --> Run --> cmd
TNSPING 

D2k version:
ORACLE_HOME\Orainst\nt.rgs 

File versions:
On Unix: strings -a "File name" | grep Header
On Windows : find "Header" File_name