how to read bash shell command output in c program
how to read bash shell command output in c program. In this tutorial we will learn about Linux popen system call. popen system call can be used to read...
how to check if Ethernet cable is connected Linux
how to check if Ethernet cable is connected Linux. write a C program to detect whether the Ethernet cable is plugged or unplugged. Let us first learn how to...
using shift and positional parameters in Linux
using shift and positional parameters in Linux is important step. shift is a built in shell command. It takes a number as input. For example if the command is...
shell script to list files in a directory recursively
How to write a shell script to list files in a directory recursively. Linux shell scripts are group of commands. Usually we print list of files and directory in...
Some important Linux commands for developers
This is a tutorial about some important Linux commands for developers. Every Linux distribution like Ubuntu, Fedora, RedHat, CentOs etc. comes with shell commands. Knowing some of important Linux...
How to get number of processors in Linux
In this blog post we will know How to get number of processors in Linux. Here number of processors means number of available cpu cores. Every Linux distribution comes...
how to build gtk program using cmake
This blog is a simple tutorial about how to build gtk program using cmake. cmake is an open source tool to build software program. it is different from Linux...
Beautify your c or cpp program using Linux indent command
Indenting Beautify your c or cpp program using Linux indent command. When we write lengthy programs, indenting the code increases the readability of code. Indenting also makes easy to...
Write a bash shell script to read a file line by line
How to write a bash shell script to read a file line by line. Here is sample bash shell script ,which will when executed will read an input file...
How to use Linux command history to avoid typing same command
Linux is free and open source operating system. Linux provides an utility called “Shell”. The shell is a command line interpreter which accepts the Linux command from the keyboard...