tokhi

#Unix Toolbox

This document is a collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users. This is a practical guide with concise explanations, however the reader is supposed to know what s/he is doing.

##Unix Toolbox revision 14.4

The latest version of this document can be found at http://cb.vu/unixtoolbox.xhtml. Replace .xhtml on the link with .pdf for the PDF version and with .book.pdf for the booklet version. On a duplex printer the booklet will create a small book ready to bind. This XHTML page can be converted into a nice PDF document with a CSS3 compliant application (see the script example). See also the about page.
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max-mapper

1. compile ffmpeg for arm https://github.com/fiorix/ffmpeg-arm
2. create youtube 'live event'. get rtmp url + session id
3. run this:

raspivid -o - -t 0 -vf -hf -fps 30 -b 6000000 | ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 128k -g 50 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/<SESSION>

you can tweak -b and -fps to your liking. the settings above work well for 1080p. by not specifying width or height we get the full 1920x1080 resolution from the raspi camera

DenisFromHR

# -*- coding: utf-8 -*-
"""
Compiled, mashed and generally mutilated 2014-2015 by Denis Pleic
Made available under GNU GENERAL PUBLIC LICENSE

# Modified Python I2C library for Raspberry Pi
# as found on http://www.recantha.co.uk/blog/?p=4849
# Joined existing 'i2c_lib.py' and 'lcddriver.py' into a single library
# added bits and pieces from various sources
# By DenisFromHR (Denis Pleic)

jkosoy

Raspberry Pi setup

Just wanted a quick start guide for myself so that I wouldn't have to keep rooting through Google to remember all this stuff. Hopefully it helps other people.

If you had other ideas or suggestions please leave a comment.

Useful things to own before you buy a Pi

The first time I bought a Pi I was enormously frustrated with myself because I didn't own all of this stuff. Kept having to order things off of Amazon and wait to get started... very irritating. This is all good stuff to have laying around anyway:

aortbals

#! /usr/bin/python
# Dispatch - synchronize two folders

import os
import filecmp
import shutil
from stat import *

class Dispatch:
    ''' This class represents a synchronization object '''

jhollinger

rbackup

rbackup is a lightweight, rsync-powered backup utility that creates time-stamped backups.

Features

It can save backups to your local filesystem (probably an attached USB device) or to a remote host.

Backups are saved in time-stamped directories. Backups are cheap on storage, because hard-links are used for files that haven't changed between backups.

majek

import logging
import socket

log = logging.getLogger('udp_server')


def udp_server(host='127.0.0.1', port=1234):
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)