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Open Source News

Read the latest Linux/Open source software news, analysis, opinions, tutorials and much more.

Linux ifdata Command: See Network Interface Info Without Parsing ifconfig Output

Reading an IP address in a shell script requires many time and various Linux distributions stores IP address in different text files. So most of us end up writing shell pipes/scripts to get the information using ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}' syntax. There is an alternative to ifconfig+shell pipe hack - ifdata command. It is a little know tool that can be used to check for the existence of a network interface and find out info about your interface such as IP, netmask, MTU and much more. No need to write shell pipes and fetch information via ifconfig or ip command. This command is designed to be easily used by a shell script.

Shutter: The Ultimate Linux Screenshot Program

Shutter is a free, open-source, and feature-rich screenshot tool for GNU/Linux distributions. I use this tool frequently when I am creating resources for this site or for our youtube channel and it has not yet let me down.

agedu: Unix / Linux Command For Tracking Down Wasted Disk Space

Most sysadmin will run low on disk space. Users will demand more space and you need to free space. You will find out files that's a waste of space and delete it or move to an archive medium. But, how do you find the right files to delete that can help recover maximum space? Say hello to agedu tool (pronounced as 'age dee you') - it scans a directory tree and produces reports about how much disk space is used in each directory and subdirectory, and also how that usage of disk space corresponds to files with last-access times a long time ago. In other words, this command might help you to free up disk space.

HowTo: Linux Hard Disk Encryption With LUKS [ cryptsetup Command ]

Dear nixCraft,

I carry my Linux powered laptop just about everywhere. How do I protect my private data stored on partition or removable storage media against bare-metal attacks where anyone can get their hands on my laptop or usb pen drive while traveling?

Sincerely,
Worried about my data.

Convert HTML Page To a PDF Using Open Source Tool [ Linux / OS X / Windows ]

Do you need a simple open source cross-platform command line tool that converts web pages and HTML to a PDF file? Look no further, try wkhtmltopdf.

Linux / Unix Desktop Fun: Cat And Mouse Chase All Over Your Screen

Oneko is a little fun app. It will change your cursor into mouse and creates a little cute cat and the cat start chasing around your mouse cursor. The word "neko" means "cat" in Japanese and it was originally written by a Japanese author as a Macintosh desktop accessory.

Download Slackware 14.0 CD / ISO Images

Slackware version 14.0 has been released and available for download from the official project website. This updated version brings many enhancements, including Xfce 4.10.0, KDE 4.8.5, and Linux kernel version 3.2.29.

Linux / UNIX Desktop Fun: Interactive Aquarium

Fsh is an entertaining interactive desktop aquarium. It was created as an alternative to Gnome easter egg called "Free the fish".

remark Command: Highlight Any Text or Command Output Using Regular Expressions

The remark command is a little know tool that can be used to color syslog file as well as output of of programs such as ping, traceroute, and much more.

HowTo: Connect Two Wireless Router Wirelessly ( Bridge ) With Open Source Software

You can setup a wireless connection between two routers only so that it will link a wireless network to a wired network allowing you to bridge two networks with different infrastructure. You can find wireless access points products that offer either a "bridge" mode or a "repeater" mode. In this post I'm going to explain three popular open source choices that can be used for setting up a wireless bridge.