One of the most important and useful feature added to YUM Package Manager (from version 3.2.25) is the ‘yum history’ command. It allows you to review a full history of yum transactions that have...
The easiest way to determine the type of a file on any operating system is usually to look at its extension (for instance .xml, .sh, .c, .tar etc..). What if a file doesn’t have...
Normally, removing a package using YUM package management system will remove that package together with its dependencies. However, certain dependencies will not be removed on the system, these are what we can term as...
dpkg-reconfigure is a powerful command line tool used to reconfigure an already installed package. It is one of the several tools offered under dpkg – the core package management system on Debian/Ubuntu Linux. It...
One of the greatest features of Bash is the command history, which stores all commands a user runs, in a history file within his/her home directory (typically /home/$USER/.bash_history). This allows the user to easily...
Ping is a simple, widely used, cross-platform networking utility for testing if a host is reachable on an Internet Protocol (IP) network. It works by sending a series of Internet Control Message Protocol (ICMP)...
Searching or finding files on a Linux system from the terminal can be a little of a challenge especially for newbies. However, there are several command line tools/utilities for locating files in Linux. In...
Wget is a popular, non-interactive and widely used network downloader which supports protocols such as HTTP, HTTPS, and FTP, and retrieval via HTTP proxies. By default, wget downloads files in the current working directory...
A JAR (Java ARchive) is platform-independent file format used to aggregate many Java class files and associated metadata and resources such as text, images, etc, into a single file for distribution. It allows Java...
bc (Basic Calculator) is a command line utility that offers everything you expect from a simple scientific or financial calculator. It is a language that supports arbitrary precision numbers with interactive execution of statements...
