startup-packages

1] How to set an program to auto-start:

update-rc.d mysql start 99 3 5 . stop 0 1 2 4 6 .

2] How to remove a program:

apt-get remove apache2

3] How to disable the service in all the run levels:

update-rc.d -f apache2 remove

4] How to change root password in a script:

echo root:asd12qniqsdq | chpasswd