How to fix the /dev/fd/63: No such file or directory?

How to fix "diff: can't stat '/dev/fd/63': No such file or directory" error:

As root, simply run this command in your Terminal:

ln -s /proc/self/fd /dev/fd

How to lock down your Operating System like the NSA

Check out the following files by the NSA:

• RedHat Distros
• Mac OS X
• Windows

http://www.nsa.gov/ia/mitigation_guidance/security_configuration_guides/operating_systems.shtml

How to Restart Mac OSX sound system?

How to Restart Mac OSX sound system?

Run this in Terminal:

sudo killall coreaudiod

How to setup Raspberry PI

How to setup Raspberry PI
First, order your Raspberry PI here:

http://www.newark.com/raspberry-pi

Read the quick start guide:

http://www.raspberrypi.org/wp-content/uploads/2012/04/quick-start-guide-v2_1.pdf https://github.com/raspberrypi/noobs

Download your Linux image and unzip it:

http://www.raspberrypi.org/downloads

Install Linux:

http://elinux.org/RPi_Easy_SD_Card_Setup

Run this command in terminal(make sure you have the correct /dev/disk number /dev/disk[n]):

sudo dd bs=1m if=2013-07-26-wheezy-raspbian.img of=/dev/disk2

How to install httrack to download websites

How to install httrack to download websites

To install:

sudo apt-get install httrack

How to install system monitoring tools

How to install system monitoring tools

To install them:

sudo apt-get install sysstat

Only some of the helpful tools that come with 'sysstat' package:

iostat
mpstat

How to run ADB on 64 bit systems

How to run 32-bit binaries on a 64-bit architecture

Most of the times on a fresh install of Ubuntu, it will be missing packages to be able to run 32-bit binaries.

To install them:

sudo apt-get install ia32-libs

How to install GNUTLS on Ubuntu

How to install GNUTLS

I an ran into this problem the other day while compiling GNU tools. Some require GNU TLS.

To install them:

sudo apt-get install gnutls-bin

How to install the D compiler on Ubuntu

How to install the D compiler

Install command:

sudo apt-get install gdc

How to compile inline Assembly in C

How to compile Assembly inline with C

Make sure you have 32-bit libraries, install them:

apt-get install gcc-multilib

#include <stdio.h>

char Format[] = "Hello world, %d\n"; 

int main (void) { 
 asm ( "subl $8, %esp\n" 
 "movl $3, 4(%esp)\n" 
 "movl $Format, (%esp)\n" 
 "call printf\n" "addl $8, %esp\n" ); 
 return 0; 
}

gcc -m32 test.c -o test.o; ./test.o

http://stackoverflow.com/questions/11378181/use-printf-function-in-inline-asm-on-gcc

How to install Sublime Text 2 on Ubuntu

How to install Sublime Text 2 for Ubuntu

To install them:

sudo add-apt-repository ppa:webupd8team/sublime-text-2
sudo apt-get update
sudo apt-get install sublime-text

Note: "sublime-text" is the latest Sublime Text 2

How to install Gnome 3 on Ubuntu

How to install Gnome 3 on Ubuntu:

To install them:

sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update
sudo apt-get install gnome-shell
sudo apt-get install gnome-tweak-tool *optional*

This is less glitchy and much smoother than Unity!

How to completely remove Unity from Ubuntu

How to completely remove Unity from Ubuntu:

Make sure to have another Desktop installed!

Remove the packages for Unity:

sudo apt-get remove unity unity-2d-places unity-2d unity-2d-panel unity-2d-spread unity-asset-pool unity-services unity-lens-files unity-lens-music unity-lens-applications gir1.2-unity-4.0 unity-common indicator-sound indicator-power indicator-appmenu libindicator6 indicator-application evolution-indicator indicator-datetime indicator-messages libnux-1.0-0 nuxtools

How to install Subversion in Ubuntu

How to install subversion

To install the packages:

sudo apt-get install subversion

Then you can download copies of svns:

svn checkout SVN_LINK

How to install the WX Python package in Ubuntu

How to install Python WX for creating Python GUIs

WX is a cross-platform GUI kit for Python.

To install the packages:

sudo apt-get install python-wxgtk2.8

How to install Objective C on Ubuntu

How to install Objective C packages:

To install them:

sudo apt-get install gobjc gnustep gnustep-make gnustep-common

To compile files:

gcc -o hello hello.m -Wall -lobjc

How to play .mp4 files on Ubuntu

How to play .mp4 files

Simply install these packages:

sudo apt-get install gstreamer0.10-plugins-bad gstreamer0.10-plugins-ugly

How to disable IPV6 in Ubuntu

How to disabled IPV6

First, check to see if you are running IPV6(there is more than just one way to check):

ip a | grep inet
netstat -tupln

Try blacklisting: /etc/modprobe.d/blacklist.conf add this to the file(have to restart):

blacklist ipv6

/etc/sysctl.conf add this to the file and then run "sudo sysctl -p":

net.ipv6.conf.all.accept_ra = 0
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

/etc/default/grub and then run "sudo update-grub2":

GRUB_CMDLINE_LINUX="ipv6.disable=1"

Always check your work:

How to burn ISOs to CD-RW/DVD-RW in Linux

How to burn ISO files to CD-RW/DVD-RW in Linux

List the devices to write with:

cdrecord -scanbus

After running this command, match the "dev=NUM,NUM,NUM" with the next command to make sure your are writing the ISO with the correct device.

cdrecord -v -pad speed=1 dev=0,0,0 FILE.iso

-v - verbose(shows my information)
-pad speed=1 - change the write speed
dev=0,0,0 - this is your device

How to erase CD-RW/DVD-RW in Linux

How to wipe a CD-RW/DVD-RW on linux

Run this command to make sure that the cd is unmounted:

umount /dev/cdrom

Use the "cdrecord" command to quickly erase the CD-RW/DVD-RW

cdrecord dev=/dev/cdrom blank=fast