Program to find the day of the week for a given date
1.0 Day of Week The Gregorian calendar was adopted in 1582. The formula to find the day of the week for any date after 1582 is, d = N +…
Socket programming using the select system call
1.0 Client-Server Paradigm The Client-Server paradigm divides the software architecture of a system in two parts, the server and its clients. The server works in the background and maintains the…
Socket Programming using UDP in C
1.0 Datagram sockets There are two major types of network sockets, viz. Stream sockets (SOCK_STREAM) and Datagram sockets (SOCK_DGRAM). The socket type defines the semantics of communication between this socket…
Socket Programming using TCP in C
1.0 Client-server model Client server model is a software architecture paradigm prevalent in distributed applications. A server has information resources and processes that provide answers to queries and other services…
Signals in Linux
1.0 Signals A signal is a notification delivered to a process by the kernel. A signal indicates that an event has occurred and the process must take note of it.…
D-Bus Tutorial
D-Bus is a mechanism for interprocess communication for Linux systems. D-Bus concepts along with example client-server programs are explained.
Find user login history – last and lastb commands in Linux
1.0 last and lastb The last command gives a chronological list of user logins in a Linux system for a period of time. The lastb commands gives a similar list…
POSIX Shared Memory in Linux
1.0 Shared Memory Shared memory is an inter process communication (IPC) mechanism in Linux and other UNIX-like systems. Based on input parameters, the kernel provides a (shared) memory segment to…
System V Shared Memory in Linux
1.0 Shared Memory Shared memory is one of the three inter process communication (IPC) mechanisms available under Linux and other Unix-like systems. The other two IPC mechanisms are the message…
Queue implementation in C using linked list
1.0 Queue A queue is something we see often in our daily lives. People stand in a queue to get into a bus, to get food in a buffet, buy…