sorry, i'm a newbie to unix...

but how do i or rather where do i write scripts that auto start my application e.g. Informix?

in Windows it would be services but in UNIX where can i auto start my informix program? To run informix i just type "oninit". And do i have to login to any user before i can autorun any program?

also, i understand to set environment vars, i have to edit my .profile file?

i add the below lines to that file but it doesnt seem to work?

informixdir=/opt/informix
export informixdir
path=$informixdir/bin:$path
export path


and is there any global environment file where i can edit 1 and it applies on all users who logon?

btw, i'm using SCO Unixware 7.

Thanks!