How to find out linux release information?

For Oracle Enterprise Linux:
$ rpm -qf /etc/redhat-release
enterprise-release-5-0.0.9
$ cat /etc/enterprise-release
Enterprise Linux Enterprise Linux Server release 5.2 (Carthage)

For RedHat Enterprise Linux:
$ rpm -qf /etc/redhat-release
redhat-release-4AS-5.5
$ cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)

For SuSE, use “/etc/SuSE-release”:
$ cat /etc/SuSE-release
SUSE LINUX Enterprise Server 9 (i586)
VERSION = 9

Useful Articles for the Oracle E-Business Suite Technology Stack for Applications DBA (Security)

Note 738923.1 Oracle E-Business Suite Releases 11i and 12 Critical Patch Update note

Note 403537.1 Best Practices for Securing Oracle E-Business Suite Release 12

Note 189367.1 Best Practices for Securing the E-Business Suite Release 11i

To download and Upload rules for a particular form

To download rules for a particular form:

FNDLOAD <userid>/<password> 0 Y DOWNLOAD $FND_TOP/patch/115/import/affrmcus.lct <filename.ldt> FND_FORM_CUSTOM_RULES form_name=<form name>

Upload:
FNDLOAD <userid>/<password> 0 Y UPLOAD $FND_TOP/patch/115/import/affrmcus.lct <filename.ldt>

How To Control The Output Format Of Report Custom Layout Template in Oracle Apps

Profile 'FND: Default Template Output Type' needs to be defined at SITE level
with any one of the following values:

* EXCEL
* FO
* HTML
* PDF
* RTF

the way to find version of installed family packs in oracle apps?

SELECT PRODUCT_VERSION,PATCH_LEVEL FROM
FND_PRODUCT_INSTALLATIONS WHERE PATCH_LEVEL LIKE ‘%GL%’;