The Ultimate Linux Soft and Hard Link Guide (10 Ln Command Examples) There are two types of links available in Linux — Soft Link and Hard Link. Linux ln command is used to create either soft or hard links. This article explains how to create soft link, how to create hard link, and various link tips and tricks with 10 practical examples. $ ls -l total 4 lrwxrwxrwx 1 chris chris 10 2010-09-17 23:40

Question: I would like to know how to install, uninstall, verify deb packages on Debian. Can you explain me with an example? Answer: Use dpkg to install and remove a deb package as explained below. On Debian, dpkg (Debian package system) allows you to install and remove the software packages. dpkg is the simplest way to install and uninstall a package. Debian now supplies a tool named Apt (for “A

4 Easy Steps to Install and Configure VMware Server 2 on Linux VMware Server runs on top of an existing host operating system (Linux or Windows) as shown below. This is a quick way to get started with the VMware. Refer to our VMware introduction article to get a high level understanding on virtualization fundamentals. 1. Download VMware Server 2 Go to VMware Server download page . VMware Server 2

Unix Bash Alias Tutorial – Handle Alias Command Like Jennifer Garner While most of us cannot kick someone ass like Jennifer Garner in Alias, we can at least try to use the Linux alias command effectively. An alias command is simple string substitution of one text for another, when it is used as the first word of a simple command. In this article let us review how to set / unset bash aliases perman

Vim editor is hands-down the best editor on Unix and Linux environment. These 10 practical tutorials will help you become proficient in the Vim editor. If you are spending lot of time on Unix environment, you should become comfortable in the Vim editor. These tutorials contain practical examples that are designed to give you a jumpstart on the Vim editor fundamentals. This is lot of reading. Don’t

Netstat command displays various network related information such as network connections, routing tables, interface statistics, masquerade connections, multicast memberships etc., In this article, let us review 10 practical unix netstat command examples. 1. List All Ports (both listening and non listening ports) List all ports using netstat -a # netstat -a | more Active Internet connections (serve

Earlier we discussed the basics of how to write and compile a C program with C Hello World Program. In this article, let us discuss how to debug a c program using gdb debugger in 6 simple steps. Write a sample C program with errors for debugging purpose To learn C program debugging, let us create the following C program that calculates and prints the factorial of a number. However this C program c

Bash Scripting Introduction Tutorial with 5 Practical Examples Similar to our on-going Unix Sed and Unix Awk series, we will be posting several articles on Bash scripting, which will cover all the bash scripting techniques with practical examples. Shell is a program, which interprets user commands. The commands are either directly entered by the user or read from a file called the shell script. Sh

MYSQL_PS1: 6 Examples to make your mysql> prompt like Angelina Jolie A while back we tried to customize unix prompt to look like Angelina Jolie. Oh boy, didn’t I fail miserably in that attempt? Well, that didn’t stop me from trying an extreme makeover for mysql> prompt. Let us face it. The following mysql> prompt is boring. Nobody wants to see it. Let us change the default mysql> prompt to somethi

I personally prefer to use less command to view files (instead of opening the file to view in an editor). Less is similar to more command, but less allows both forward and backward movements. Moreover, less don’t require to load the whole file before viewing. Try opening a large log file in Vim editor and less — you’ll see the speed difference. The navigation keys in less command are similar to Vi

8 Powerful Awk Built-in Variables – FS, OFS, RS, ORS, NR, NF, FILENAME, FNR This article is part of the on-going Awk Tutorial Examples series. Awk has several powerful built-in variables. There are two types of built-in variables in Awk. Variable which defines values which can be changed such as field separator and record separator. Variable which can be used for processing and reports such as Num

How To Create ASCII Drawings in Vim Editor (Draw Boxes, Lines, Ellipses, Arrows Inside Text File) You can create line drawings in Vim editor using the Vim DrawIt! plugin. You can draw flow charts, ER diagrams, or any other diagrams that can be created as line drawing inside a text editor using this plugin. 2 Steps to install drawit.vim Step 1: Download latest version of the plugin from vim.org Dow

As you already know, ping command is used to find out whether the peer host/gateway is reachable. If you are thinking ping is such a simple command and why do I need 15 examples, you should read the rest of the article. Ping command provides lot more options than what you might already know. Ping Example 1. Increase or Decrease the Time Interval Between Packets By default ping waits for 1 second b

File Manipulation Examples Using Tac, Rev, Paste, and Join Unix Commands In this article, let us review how to use Unix tac command, rev command, paste command, and join command with practical examples. 1. tac command – Print file in reverse (last line first) The word tac is reverse of the word cat. The tac command functionality is also reverse of the cat command. cat command prints the file. tac

Do You Like to Perform Vi Style Editing in BASH Command Line ? Question: I like Vi style of editing and I’m very comfortable with Vi commands. How do i use Vi style line editing in Unix command line? Answer: Execute set -o vi at your Unix shell to enable Vi style editing. Enable Vi Style Editing in BASH $ set -o vi By default the command line is in emacs mode. After you perform set -o vi , press E

Vim Editor: How To Increase or Decrease Date, Time, Roman Number and Ordinals From Vim editor, move your cursor to a number and press Ctrl+A to increase the number or Ctrl+X to decrease the number. Ctrl+A to increase the number under cursor Ctrl+X to decrease the number under cursor Ctrl-A and Ctrl-X will work only on numbers. However using Speeddating Vim plugin, you can use Ctrl+A and Ctrl+X in

Unix Sed Tutorial: Find and Replace Text Inside a File Using RegEx This article is part of on-going Unix Sed Tutorial series. In previous articles, we discussed about sed print operation and sed delete operation. In this article let us review how to use sed substitute command “s”. The `s’ command is probably the most important in `sed’ and has a lot of different options. The `s’ command attempts t

wget utility is the best option to download files from internet. wget can pretty much handle all complex download situations including large file downloads, recursive downloads, non-interactive downloads, multiple file downloads etc., In this article let us review how to use wget for various download scenarios using 15 awesome wget examples. 1. Download Single File with wget The following example

Unix Sed Tutorial: Printing File Lines using Address and Patterns Let us review how to print file lines using address and patterns in this first part of sed tutorial. We’ll be posting several awesome sed tutorials with examples in the upcoming weeks. Unix Sed Introduction sed is a “non-interactive” stream-oriented editor. Since its an “non-interactive” it can be used to automate editing if desired

PuTTY is hands-down the best SSH client for Windows. It’s light-weight with a single putty.exe file and nothing else to install. A while back we wrote about 12 powerful PuTTY software add-ons and explained how PuTTY connection manager can help you to organize PuTTY SSH sessions in tabs. In this article, let us review 10 awesome native PuTTY tips and tricks that you might have not explored earlier.