Program to find the day of the week for a given date

The Gregorian calendar was adopted in 1582. A C Program to find the day of the week for a given date as per Gregorian calendar is explained.

Socket programming using the select system call

The select system call helps a server monitor sockets of multiple clients for readiness of I/O operations. The select call is explained.

User Datagram Protocol (UDP) is a connectionless communication protocol. UDP is explained with example client server programs.

A socket is a communication end point at a host. Socket programming helps in creating distributed networked applications.

Signals are software interrupts that are delivered to a process by the kernel. A signal is a notification about an event that has occurred.

D-Bus is a mechanism for interprocess communication for Linux systems. D-Bus concepts along with example client-server programs are explained.

last and lastb commands print the user login history. last prints the previous logged in users and lastb shows the failed login attempts.

How to do interprocess communication using the POSIX shared memory calls is explained with example client-server programs.

How to do interprocess communication using the System V shared memory calls is explained with example programs.

A queue is a common first-in first-out data structure. An implementation of queue in C language using a linked list is explained.