在/etc/rc.local下加入以下几行：
引用:INFORMIXDIR=/opt/informix
export INFORMIXDIR
/opt/informix/bin/oninit
echo" starting infromix YOUDB...."
sleep 3
2.关闭
在/etc/rc.d/initid/halt加入：
引用:echo "shutting informix YOUDB..."
INFORMIXDIR=/opt/informix
INFORMIXSERVER=YOUDB
export INFORMIXDIR INFORMIXSERVER
/opt/informix/bin/onmode -ky