simonmichael

# unregister broken GHC packages. Run this a few times to resolve dependency rot in installed packages.                                                                                                                                     
# ghc-pkg-clean -f cabal/dev/packages*.conf also works.                                                                                                                                                                                     
function ghc-pkg-clean() {
    for p in `ghc-pkg check $* 2>&1  | grep problems | awk '{print $6}' | sed -e 's/:$//'`
    do
        echo unregistering $p; ghc-pkg $* unregister $p
    done
}

# remove all installed GHC/cabal packages, leaving ~/.cabal binaries and docs in place.                                                                                                                                                     

wrunk

#!/usr/bin/env/python
# 
# More of a reference of using jinaj2 without actual template files.
# This is great for a simple output transformation to standard out.
#
# Of course you will need to "sudo pip install jinja2" first!
#
# I like to refer to the following to remember how to use jinja2 :)
# http://jinja.pocoo.org/docs/templates/
#

endolith

Grr this took hours to figure out. I was trying to install MJPG-streamer and running VLC command lines and all this crap but nothing worked.

First install motion:

~> sudo apt-get install motion

Then create a config file:

~> mkdir ~/.motion

~> nano ~/.motion/motion.conf

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

marktheunissen

This playbook has been removed as it is now very outdated.

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

cmaglie

#ifndef _STRING_STREAM_H_INCLUDED_
#define _STRING_STREAM_H_INCLUDED_

#include <Stream.h>

class StringStream : public Stream
{
public:
    StringStream(const String &s) : string(s), position(0) { }

electronut

# Makefile for programming the ATtiny85
# modified the one generated by CrossPack

DEVICE      = attiny85
CLOCK      = 8000000
PROGRAMMER = -c usbtiny 
OBJECTS    = main.o
# for ATTiny85
# see http://www.engbedded.com/fusecalc/
FUSES       = -U lfuse:w:0x62:m -U hfuse:w:0xdf:m -U efuse:w:0xff:m 

mkb

Too early to tell whther this solved my problem but recording for posterity anyway. In theory this will stop my Raspberry Pi from dropping off the network after it has been idle for a while.

Before

pi@dashboard ~ $ iwconfig
wlan0     IEEE 802.11bgn  ESSID:"Professor Ping"
     Mode:Managed  Frequency:2.437 GHz  Access Point: B8:E6:25:9B:62:02
     Bit Rate=39 Mb/s   Tx-Power=20 dBm

Retry long limit:7 RTS thr:off Fragment thr:off

boylea

"""
Tested on Linux with python 3.7
Must have portaudio installed (e.g. dnf install portaudio-devel)

pip install pyqtgraph pyaudio PyQt5
"""
import numpy as np
import pyqtgraph as pg
import pyaudio
from PyQt5 import QtCore, QtGui