Ubuntu 11.10 Proxy Settings

Temporary proxy:

Where proxy.addr is the proxy address, 4040 is the port number. Some proxies may require “http://” before the address.

export http_proxy=”proxy.addr:4040″ export ftp_proxy=”proxy.addr:4040″ export https_proxy=”proxy.addr:4040″

If you run this in a terminal, any programs opened from that terminal will adhere to the proxy you set but any other applications will not. This […]

Linux USB Errors with usb-creator-gtk “stdin: I/O error stdin: error 0 /init: line 1: can’t open /dev/sr0: No medium found”

After installing Ubuntu on a USB stick with the Ubuntu USB Startup Disk Creator (usb-creator-gtk) you might encounter an error such as the following:

stdin: I/O error stdin: error 0 /init: line 1: can’t open /dev/sr0: No medium found

This is actually a bug with the software and isn’t anything you’ve done wrong. It […]

Switching Between Two Resolutions in Linux

I have a TV and my monitor connected to my PC by a VGA switch box but what’s annoying is they aren’t the same resolution. This causes problems because I can’t see what I’m doing when I have switched to TV and usually have to leave the setting manager open so that when I […]

Xfce4 Installed on Ubuntu 11.10, Global Menu Remains.

After installing Ubuntu 11.10 I headed straight for an install of gnome-shell, I’ve been using it for a couple of months without any issue and got used to it enough that it wouldn’t impede on my workflow. That was until this release, when it was officially supported by Canonical and all of a […]

One Line IP Address Bash Command

ifconfig eth0 | sed -n ‘/^[A-Za-z0-9]/ {N;/dr:/{;s/.*dr://;s/ .*//;p;}}’

So you want to display just your IP address and not all the other stuff that comes with using the ifconfig command. Then use the above command.

It’s useful if you need your IP address in a script but you don’t want to set a static […]

HowTo: Remove Every Other Line in Text Files – Linux

Let’s say you’ve got a text file, of any size, big or small, and you want to remove every other line of that file, well here are a few commands in Linux that allow you to do this.

Example, you want to get from this:

1 2 3 4 5 6 7 8 9 […]

HowTo: Mount USB Persistent casper-rw File in Linux

So, you’ve created an awesome Live USB Linux stick with a persistence file which let’s you boot anywhere and carry all your sweet sweet datas around on it too. If you want to see those files in Linux on your desktop or laptop outside the USB you’re going to have to mount the loop […]

How To: Install Pyrobot in Ubuntu

A quick guide for getting pyrobot running in Ubuntu, I’ve managed to get it running on 32bit and 64bit Ubuntu (10.10) so follow the guide accordingly to whichever architecture you’re using (64bit is about half way down the post).

32-bit

1. Download this file, or copy the below into a file and save it […]

HowTo: Find Recently Used Commands in Linux

One of my most used commands in Linux is the history command, it lists all your recent commands. The problem with this is you might have to scroll through hundreds before you get to one of any interest, so adding grep to search through these and bring back only relative one’s is great.

Give […]