daemon process and login via script

[itsnammu]

i want to write a script which will start automatically at whenthe system boots and will run in the daemon mode continously, please suggest.
in this script i want to login to a particular user and want to perform some task.

please suggest how should i start a daemon at system startup and then from a script login to a diffrent user, i have access to the password.

 

[hoinz]

For a start read the manual pages on rc, rc.config and su.
Hope this helps