Linux

An ISO image is a computer archived version of a CD or DVD disc. When working with an ISO image, it may be necessary to add files to the disc. As with physical discs, modifying an ISO image is not...

On Unix and Linux systems, the "date" command can be used to create formatted date and time stamp strings for naming files and directories. Date stamps are useful in scripts and time-based, or...

The Unix and Linux operating systems use a shell as a way to interact with the operating system. The shell is a programming language that can be used directly from the command line or it can be...

The hostname of a computer is the name that is used to identify the computer over the network. Every computer on the network must have a unique hostname. The hostname is normally set when the...

This Linux how to is on the Fedora operating system, which runs on Linux systems. Fedora Linux is an open source application, and there are literally millions of users who participate in the...

This is a Linux how to on Fedora, an operating system that runs on Linux systems. Fedora Linux is a free, open source software application with millions of people globally participating in the...

TTY is a Linux command, used at a command or shell prompt, that gives information about the terminal that a user is currently at. Typing "tty" at a Linux or Unix command prompt will yield a...

The ls command in Unix lists the contents of a directory. In this article, I will demonstrate the correct syntax as well as different options for this simple command.

A Linux machine will boot to the command line for various reasons, mostly because something is wrong with the X Window Configuration or use of the Window Manager. If your Linux machine has booted...

The UNIX sort command is used to sort ASCII text files. It can be used to sort files of any size. The command can even be used to sort more than one file and place the output into a single file....

The chmod command is useful for setting file or directory (folder) permissions on Unix-like systems, such as Linux or Mac OS X. It is often needed to set up installations on web servers or...

The Yum (Yellowdog Updater Modified) package manager is used to install RPM packages and their dependencies on Red Hat and Fedora Core Linux distributions. It removes the need to track down and...

The new Ubuntu 9.04 Jaunty Jackalope linux server upgrade was recently released, as an upgrade from Ubuntu 8.10 server installation. The new Jaunty Jackalope Server version uses GNOME 2.26.1 and...

The ext2 (second extended file system) is a file system used with the Linux operating system. It supports the standard Unix file types, including regular files, directories, device files and...

There are several third party tools that can help you to change the color depth on your Solaris machine. Solaris has several versions and each of them has their own tips and tricks to achieve just...

RPM files are software packages designed for the Linux (and Unix) operating systems. They were originally designed for Red Hat Linux, but are now used by many other Linux distributions and some...

A Jumpstart Server is a software application that is used to automate the installation of the Solaris Operating Systems to remote computers over a network. You can have one Jumpstart Server and...

Ubuntu has become one of the most popular Linux distributions available. As part of the Ubuntu installation, a generic host name is created. It is possible to edit the Host Name during the...

Linux is a versatile multi-user operating system. Unfortunately, more users on the system means increased odds of a mistake being made at some point. Sooner or later someone will delete an...

In 1969, engineers in Bell Labs came up with the idea of Unix, a multi-user scalable operating system. Unix evolved significantly over the past few decades to become one of the most portable...

Ubuntu is one of the more popular Linux distributions available in 2009. By default, Ubuntu installs and uses Gnome as its window manager or GUI, which is the acronym for "Graphical User...

The File Transfer Protocol (FTP) is a network protocol built on the client-server architecture and designed to manipulate and exchange files over a network. FTP is most commonly used to download...

Unix is a multi-user, multi-tasking operating system (OS) created in 1969 at the Bell Laboratories. The term multi-user means that one instance of the operating system can be accessed by many...

Sed is a Unix stream editor that will manipulate text in various ways. Bash is a command line interpreter that allows you to create scripts that will perform various tasks, including interacting...

All Linux files have both an access date/time stamp and a modification date/time stamp associated. These times are important when the backup script determines whether a file will be backed up...

Groups are subsets of the larger Linux or Unix user population. Each user belongs to at least one group but may belong to more than one group. A user's group defines his access to certain files...

The Linux kernel is the part of the operating system that controls the hardware and system processes, and keeps everything working together. The default kernel can be used on most hardware...

A Deb (.deb) package is a binary software package designed for a Debian based Linux distribution such as Debian or Ubuntu. The .deb file is an archived file that holds two internal files, one...

The Unix/Linux kernel is the part of the operating system that ensures that all system processes and hardware work together efficiently. The kernel is a software application in the same way that...

Gdebi is a Debian package installer designed to resolve dependencies and install .deb software packages contained on the local machine. Gdebi will determine the dependencies for the local .deb...

Java is used to create dynamic web pages and stand-alone applications. It requires that an instance of the Java interpreter be installed on the client computer, and enabled in the web browser to...

Telnet is a way to access a remote computer over a network. Typically, using telnet provides command line access to the telnet server. Telnet does not encrypt any data sent over the network...

In Linux, groups are small subsets of the larger user population who have access to a set of files. Groups can also be used to indicate which users can execute certain commands. A single user...

Removing installed applications can be a bit confusing for the experienced Microsoft Windows user who is just becoming acclimated to Linux or a new Linux user trying to understand the system....

All the serious computer community knows that hard drives fail. There are ways around the hassle of losing your data for good, and I'm going to show you the way to do this. The method I am going...

On a multi-user system, it is important to know how much memory each process, application and user is utilizing. This information will help you spot processes that are overusing system processes...

The 'rm' command in Unix is a very powerful tool for deleting files. Unlike Windows, it performs its operation silently and assumes that you actually do want to permanently delete the file. It...

The Unix operating system is designed to be used by several different users concurrently. Each user has his own environment, which includes the system shell, the home directory and many different...

The Unix shell environment is designed for the reading and manipulation of text files (among other tasks). The configuration files, scripts and source code are simple text files that can be read...

Linux has many ways to install programs. The graphical package manager, RPMs, the Debian package manager, the apt and yum utilities, and compiling directly from source code are the most popular...

Tape archive (TAR) files originally were used in Linux and Unix environments to back up data to tape. Today, TAR files are used more commonly to store archives of files and directories in one...

The Unix find command will locate files and directories with a file system. It can be used in conjunction with other Unix commands to perform system tasks such as cleaning up old files and...

Cron is a UNIX utility that execute programs at regular intervals. Each user and root can specify his own set of commands by creating his own crontab file.

Creating a file is very easy to do in Unix. Many Unix users make programs that create zero length files on the fly from the command line. In other cases, Unix users need to create files that have...

Vi is a powerful command line text editor native to Unix. Although it is not possible to remove duplicate lines of text with native vi commands, it is possible to do so using native Unix commands...

With a few simple commands typed into a terminal window, you can remove any Unix file permanently.

Hi guys......... I have downloaded UBUNTU latest version and installed it to my computer, I know that Ubuntu is much better then any other Linux OS. But i have faced many problem while installing...

There will be times when you want to remove an entire directory including all subdirectories and files. You can do this in Linux with a few simple commands typed at a command line.

Deleting a print job from Unix is simple if you're the administrator. Some clients may have the command ability to enter the necessary commands to delete the job themselves, but most do not....

Unix is one of the original computer operating systems, developed in the late 1960s at Bell Labs. There are a number of variants of UNIX available for free or commercially in the marketplace...