The size to which the PNG image above was compressed may not seem like much, but the original image was already compressed. Besides, if you own a website, compressing ALL the images will most definitely make a difference, especially since - as you can see in the picture above - the quality is basically the same to the naked eye.

Plowshare is a command-line downloader and uploader for some of the most popular file-sharing websites. It works on UNIX-like systems and presently supports: Megaupload, Rapidshare, 2Shared, 4Shared, ZShare, Badongo, DepositFiles and Mediafire.

ImageMagick is a powerful set of tools used to perform various operations on images directly from the command-line. To install it in Debian type as root:

In this post: a little about the WGET command:

Download a zip archive:

wget http://website.com/archive.zip

and archive.zip will be downloaded. But we can download files using a lot of parameters. Read on!

This is the third article in the Bash tips series, you can find the other two here and here.

Among the commands: Find removed (deleted) files still in use via /proc, On-the-fly unrar movie in .rar archive and play it, does also work on part archives, List programs with open ports and connections, Manually pause/unpause an application (process), etc.

CMus (C* Music Player) is an ncurses-based audio player that runs in a shell, with no need for an X server which is very configurable with Vi-like commands, multiple views and keyboard shortcuts. It supports various audio formats, including Ogg Vorbis, FLAC, MP3, WAV, AAC or WMA.

1. Use !!
Typing !! followed by Enter will bring back and execute the last command (same as Ctrl+P followed by Enter).

2. Use Emacs-like shortcuts

Nano is a popular and user-friendly text editor for console which is mostly used for editing quickly configuration files, sources or various other text files. It does not compete with advanced development environments like Vim or Emacs, but it's fast and easy on resources.

A shell is a command interpreter which allows the user to interact with the computer. The way things work is simple: the user types in commands, the shell interprets them and performs the tasks it was asked to do, and finally it sends the result to the standard output (which is usually the screen).

In this guide I will show how to create CD/DVD ISO images in Ubuntu using four easy methods. 1. Create ISO Images With K3b 2. Create ISO images with Brasero 3. Create ISO images using AcetoneISO2 4.

1. Brag about how much free RAM you have on Linux:

free

2. Where is that application I just installed (all directories)

whereis [app]

3. Disk space usage

This article reviews all the most common command line tools for manipulating and listening to audio formats on Linux. Players, editors, encoders/decoders, tag editors, music servers, they are all here. Currently it includes no less than 18 CLI (Command Line Interface) tools.

13 of the popular CLI tools/audio players for audio playing and encoding/decoding on Linux: mp3blaster, mpd, music123, cmus, mpg123, ogg123, ripit, oggenc, flac, ogginfo, vorbiscomment, cuebreakpoints, shnsplit.