Also consider
/etc/bashrc &
/etc/profile, they are system-wide, i.e. apply to all users. I think
/etc/bashrc is preferable, check man bash for the (slightly subtle) differences between them.
If instead you really want something that runs at every boot after the init scripts, check out
/etc/rc.local:
Code:
ls /etc/rc.local
less /etc/rc.local
Sorry, I don't know where that man page is.