GDB (Step by Step Introduction)
GDB stands for GNU Project Debugger and is a powerful debugging tool for C(along with other languages like C++).It helps you to poke around inside… Read More »
Tag Archives: linux-command
Different Shells in Linux
SHELL is a program which provides the interface between the user and an operating system. When the user logs in OS starts a shell for… Read More »
What to do when load on a Linux based web server goes high?
1) We must know about uptime command. If your website is loading slow, login into your web server console and run uptime to know load… Read More »
Run commands as root with sudo
Introduction – Linux follows the very tough permission model. A root user can do anything but normal user has no permissions. To run any command,… Read More »
Communication between two process using signals in C
Prerequisite : C signal handling In this post, the communication between child and parent processes is done using kill() and signal(), fork() system call. fork()… Read More »
Create Directory or Folder with C/C++ Program
Problem: Write a C/C++ program to create a folder in a specific directory path. This task can be accomplished by using the mkdir() function. Directories… Read More »
Linux | Uptime command with examples
Uptime Command In Linux: It is used to find out how long the system is active (running). This command returns set of values that involve,… Read More »
Developing a Linux based shell
What is a shell? It’s the visible part of an operating system that users interact with, users interact with the operating system by providing commands… Read More »
Ping in C
Prerequisites : ICMP | Raw Socket | Internet Checksum | DNS Ping is a necessity for debugging of the Internet. Ping is a basic Internet… Read More »
PING Command in Linux with examples
PING (Packet Internet Groper) command is used to check the network connectivity between host and server/host. This command takes as input the IP address or… Read More »
Fun Commands in Linux
cowsay First we install it using sudo apt-get install cowsay. We use other objests to use -l to list them and -f to use them.… Read More »
vi Editor in UNIX
The default editor that comes with the UNIX operating system is called vi (visual editor). Using vi editor, we can edit an existing file or… Read More »
Custom commands for linux terminal
Linux operating system allows users to create commands and execute them over the command line. To create a command in Linux, the first step is… Read More »
Real, Effective and Saved UserID in Linux
Every user in Unix like operating system is identified by different integer number, this unique number is called as UserID. There are three types of… Read More »
Implementation of ls | wc command
ls | wc command : Using ls|wc, we can count new lines, words and letters of all files of current directory. We can see from… Read More »