#shutdown process

Use of lock files in init scripts

In /var/lock/subsys/ directory, there are various files like network, iptables, ip6tables, sshd, rsyslog etc. all these files are the lock files created by their init scripts. Most of these files may be empty.

These files play the important role in Linux startup and shutdown process. When a service is started through an init script, a file is touched in the /var/lock/subsys/directory with the…