I have accidentally deleted /etc/rc.d and /etc/rc0.d folders which resulted deletion of init.d and other related folders.
1.What is the use of /etc/rc.d, rc, rc.d, rc0.d, rc1.d, rc2.d.......rc6.d and other files inside /etc/rc.d?
2.If we accidentally delete them how to recover?
3.If we have the same files in other server can we copy and get the situation to normal?
4.Suggest any possible way to minimize the impact or totally resolve this situation.
OS DETAILS here
Linux version 2.6.32-642.11.1.el6.x86_64 (firstname.lastname@example.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) ) SMP Wed Oct 26 10:25:23 EDT 2016