AnwarShah

DMG/PKG Linux notes

Mounting DMGs w/ HFS partitions:

http://linuxforums.org.uk/index.php?topic=1072.0

Tools needed:

apt-get install hfsplus hfsutils hfsprogs dmg2img

AnwarShah

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

AnwarShah

#!/usr/bin/ruby

themes_dir = Dir["/usr/share/themes/*"].select do |entry|
	File.directory?(entry) && File.exists?(entry + "/index.theme") && File.exist?(entry + "/gtk-3.0")
end.sort!

theme_names = themes_dir.sort.map { |dir| File.basename(dir) }

theme_names.each do |theme_name|
	sleep 60 # 60 is 1 minute. Change it according to your need.

AnwarShah

Clipboard indicator - https://extensions.gnome.org/extension/779/clipboard-indicator/
CustomCorner - https://extensions.gnome.org/extension/1037/customcorner/
Dash to Dock - https://extensions.gnome.org/extension/307/dash-to-dock/
Dash to Panel - https://extensions.gnome.org/extension/1160/dash-to-panel/
Do Not Disturb Button - https://extensions.gnome.org/extension/964/do-not-disturb-button/
Extensions - https://extensions.gnome.org/extension/1036/extensions/
gistnotes - https://extensions.gnome.org/extension/917/gistnotes/
Hide Top Bar - https://extensions.gnome.org/extension/545/hide-top-bar/
Gnome-Prefs Button - https://extensions.gnome.org/extension/1054/gnome-prefs-button/
Impatience - https://extensions.gnome.org/extension/277/impatience/

AnwarShah

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>

<fontconfig>
  <!-- enable autohint for open type fonts -->
	<match target="font">
		<test name="fontformat">
			<string>CFF</string>
		</test>
		<edit name="autohint" mode="assign">

AnwarShah

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>

<fontconfig>	
	<!-- replace thin fonts for fira with ultralight, since thin is too light -->
	<match target="font">
		<test name="family" compare="contains">
			<string>Fira Sans</string>
		</test>
		<test name="weight" compare="less_eq">

AnwarShah

SIM Card Management Over GSM Modem

A small guide on how to send and receive USSD codes on Linux

I am using the built in GSM (UMTS) modem of my Thinkpad X1 extensively because I am often in places with flaky internet connections. I connect through the standard Network Manager on Ubuntu and everything works fine. There was one major annoyance though. Every time I wanted to top up the SIM balance or book a new package, I needed a phone to send and receive USSD codes. So I took some time to figure out how to do it from the shell. I wrote this down as a help for others and a reminder for myself. Without further ado...

First intsall gammu and picocom.

➜  ~  sudo apt-get install -y gammu picocom

AnwarShah

deb http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04/ /
deb http://ppa.launchpad.net/docky-core/stable/ubuntu xenial main
deb http://ppa.launchpad.net/elementary-os/stable/ubuntu xenial main
deb http://ppa.launchpad.net/embrosyn/cinnamon/ubuntu xenial main
deb http://ppa.launchpad.net/fontforge/fontforge/ubuntu xenial main
deb http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu xenial main
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
deb https://cli-assets.heroku.com/branches/stable/apt ./

AnwarShah

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### Shell script to download Oracle JDK / JRE / Java binaries from Oracle website using terminal / command / shell prompt using wget.
### You can download all the binaries one-shot by just giving the BASE_URL.
### Script might be useful if you need Oracle JDK on Amazon EC2 env.
### Script is updated for every JDK release.

### Features:-
# 1. Resumes a broken / interrupted [previous] download, if any.
# 2. Renames the file to a proper name with including platform info.

AnwarShah

#Model 

@user.should have(1).error_on(:username) # Checks whether there is an error in username 
@user.errors[:username].should include("can't be blank")  # check for the error message 

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)