Intro
-----
	The check_prerequisites script will check that all mandatory/optional prerequisites for
	installing Sybase/CM are met.

Syntax
------
check_prerequisites.sh [ --sybhome=SYBHOME ] [ --cmhome=CMHOME ] [ --datadir=DATADIR ]
Options:
	--sybhome       intended home directory for sybase installation
	--datadir       intended data directory for sybase data files (for Datadir installation method)
	--cmhome        intended home directory for SCM-CM installation

Example
-------
	check_prerequisites script ran on a Linux system intended for bundled
	mode installation:

	# ./check_prerequisites.sh --sybhome=/export/home --cmhome=/export/home
	Check: Minimal CPU Speed: 800 
         [Success] CPU Speed is sufficient: 2130MHz

  Check: Minimal OS Version: RHEL 5.x /6.x 
         [Success] Found RHEL6, Checking minimal update level: 
         [Success] Update level: 0

  Check: Additional RPMS
         [Success] Required library glibc installed
         [Success] Required library kernel installed
         [Success] Required library compat-libstdc++-33 installed

  Check: Total memory
         [Success] Found 66108204 KB memory
 
  Check: Max Shared memory
         [Success] Found 68719476736 bytes of shared memory

  Check: Huge pages 
         [Success] Found Huge pages :      4096 

  Check: 8096000K free on intended CM home dir: /opt/scmscm
         [Success] 170068252K available in /opt/scmscm

  Check: 3072000K free on intended Sybase home dir: /opt/scmscm
         [Success] 170068252K available in /opt/scmscm

  Check: 15000000K free on intended Sybase Data dir: /opt/scmscm
         [Success] 170068252K available in /opt/scmscm

  Check: Locale set to en_US
         [Success] System Locale set to en_US
         [Success] Current Locale set to en_US

  Check: Names for all NIC's
         [Success] IP Address 10.78.242.53 is resolvable through /etc/hosts
         [Success] IP Address 127.0.0.1 is resolvable through /etc/hosts

Overview
--------
	The script will check overall readines of the system for a Sybase/CM
	installation. The main pre-requisites checked are:
		- CPU speed
		- Amount of RAM
		- Operation System version (RedHat Enterprise Linux 3/4/5/6)
		- Additional Required/Optional Packages
		- Free space for CM/SYB homes
		- Names for all NIC's
		- Sybase kernel parameters
		- Locale and TZ formats
