Function to check Distribution and Version of *nix Operating Systems

check-os.sh

# OS check function
os_check ()
{
    OS=`uname -rs`

    if [ "`uname -rs | grep 'Linux 2.6.9'`" ]
    then
    OS=RHEL_4
    elif [ "`uname -rs | grep 'Linux 2.6.18'`" ]
    then
    OS=RHEL_5
    elif [ "`uname -rs | grep 'Linux 2.6.32'`" ]
    then
    OS=RHEL_6
    elif [ "`uname -rs | grep 'SunOS 5.8'`" ]
    then
    OS=Sol_8
    elif [ "`uname -rs | grep 'SunOS 5.9'`" ]
    then
    OS=Sol_9
    elif [ "`uname -rs | grep 'SunOS 5.10'`" ]
    then
    OS=Sol_10
    else
    echo "OS cannot be identified, exiting..."
    exit 1
    fi
}