List, enable and disable rc.d scripts

manipulate_rc.d_scripts.sh

# Here prefx "S" means start, and "K" means stop/kill.
# Two digits after mean order of start and kill operations.
# I have not found any standard defining this order,
# but orders above 90 usually are user scripts.

# List installed runlevels
ls /etc/rc.d/rc?.d/*someservice

# Remove from any runlevels
rm /etc/rc.d/rc?.d/*someservice
    
# Install to start and kill at default runlevels
for i in 2 3 4 5; do ln -s ../init.d/someservice /etc/rc.d/rc$i.d/S99someservice; done
for i in 0 1 6; do ln -s ../init.d/someservice /etc/rc.d/rc$i.d/K99someservice; done