if [ `hostname | grep sybase > /dev/null 2>&1; echo $?` -eq 0 ]
then
do_sybase_stuff
fi

f [ `hostname | grep oracle > /dev/null 2>&1; echo $?` -eq 0 ]
then
do_oracle_stuff
fi

f [ `hostname | egrep "oracle|sybase" > /dev/null 2>&1; echo $?` -eq 0 ]
then
do_ommon_oracle-sybase_stuff
fi