Ancient script to start / stop oracle on gentoo

oracle

#!/sbin/runscript
#
# name: /etc/init.d/oracle
# description: starts and stops Oracle on Gentoo Linux
# author: Brian.Duff@oracle.com
#
# Change this to your Oracle user
oracle_user=ora92


depend() {
    need net
    use cupsd
}
start() {
    ebegin "Starting oracle"
    echo 1073741824 > /proc/sys/kernel/shmmax
    result=$?
    su - "$oracle_user" > /dev/null <<EOO
#
    # If you have not defined ORACLE_HOME, ORACLE_BASE, ORACLE_SID and
    # updated the PATH in the oracle user's .profile, you will need to 
    # uncomment the following lines and fill in the correct
    # values for ORACLE_BASE, ORACLE_HOME and ORACLE_SID
    #
    # export ORACLE_BASE=/u01/app/oracle
    # export ORACLE_HOME=$ORACLE_BASE/product/9.2.0.1.0
    # export ORACLE_SID=yoursid
    # export PATH=$PATH:$ORACLE_HOME/bin
    #
lsnrctl start
    sqlplus /nolog<<EOS
      connect / as sysdba
      startup
EOS
EOO
    result=$(( $result + $? ))
    eend $result
}
stop() {
    ebegin "Stopping oracle"
    su - "$oracle_user" > /dev/null  <<EOO
#
    # If you have not defined ORACLE_HOME, ORACLE_BASE, ORACLE_SID and
    # updated the PATH in the oracle user's .profile, you will need to
    # uncomment the following lines and fill in the correct
    # values for ORACLE_BASE, ORACLE_HOME and ORACLE_SID
    #
    # export ORACLE_BASE=/u01/app/oracle
    # export ORACLE_HOME=$ORACLE_BASE/product/9.2.0.1.0
    # export ORACLE_SID=yoursid
    # export PATH=$PATH:$ORACLE_HOME/bin
    #
lsnrctl stop
    sqlplus /nolog<<EOS
      connect / as sysdba
      shutdown immediate
EOS
EOO
    eend $?
}