ohaal

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

ohaal

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ohaal

Problem: When linking to the raw version of a gist, the link changes with each revision.

Solution:

To return the first file from a gist: https://gist.github.com/[gist_user]/[gist_id]/raw/

• Example: https://gist.github.com/atenni/5604522/raw/
• Works even when you change the filename.

To get a file from multi–file gist: https://gist.github.com/[gist_user]/[gist_id]/raw/[file_name]

ohaal

Lync Push To Talk

Using the Lync mute/unmute hotkey (Win + F4), allows another key to be used for push to talk.

Prereqs:

Install AutoHotkey. Note - needs to be a recent version to support the splash image.
Direct link here.

Usage

ohaal

UFW

I use Ubuntu’s Uncomplicated firewall because it is available on Ubuntu and it's very simple.

Install UFW

if ufw is not installed by default be sure to install it first.

ohaal

// source: https://github.com/Conlectus/WhoAmI
var rawSites = {
    'programming': [
        'http://blog.codinghorror.com/',
        'http://thedailywtf.com/',
        'http://www.hanselman.com/blog/',
        'http://code.tutsplus.com',
        'https://news.ycombinator.com/',
        'http://www.reddit.com/r/programming/',
        'http://codebetter.com',

ohaal

# Set ctrl-a as prefix
set -g prefix C-a
unbind C-b

# ctrl-a passthrough by sending ctrl-a 2 times
bind C-a send-prefix

# Less delay
set -sg escape-time 1

ohaal

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert $1 -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 $2

Results