bharath1097

Connect & use Logitech F310 with Macbook

Since my Macbook Pro only has USB-C port, I used an USB-A to USB-C adapter to connect my F310 to it, but it does not work (pressing MODE button does not turn on the LED).

How to

To make it work:

• Disconnect F310 from Mac
• On F310: switch X-input to D-input
• Hold Logitech button (in the middle)
• Connect F310 to Mac via adapter, now you can release the Logitech button.

bharath1097

"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np

# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)

bharath1097

Hofstadter on Lisp

In the mid-80s, while reading through my roommate's collection of Scientific American back issues, I encountered this introduction to Lisp written by Douglas Hofstadter. I found it very charming at the time, and provide it here (somewhat illegally) for the edification of a new generation of Lispers.

In a testament to the timelessness of Lisp, you can still run all the examples below in emacs if you install these aliases:

(defalias 'plus #'+)
(defalias 'quotient #'/)
(defalias 'times #'*)
(defalias 'difference #'-)

bharath1097

# /root/.unison/10Documents.prf
# Create one config file for each folder, or add one per 
# root folder and add subfolders via
# path = 10Documents
# path = 20Media
# To make this unison job load at machine startup use an init-script
# or systemd service such as
# https://gist.github.com/thunfischbrot/0b6a21a84f166c4fa74fc5df4a470b17

# local root to sync

bharath1097

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

bharath1097

Encrypted Btrfs storage setup and maintenance guide

Initial setup with LUKS/dm-crypt

This exemplary initial setup uses two devices /dev/sdb and /dev/sdc but can be applied to any amount of devices by following the steps with additional devices.

Create keyfile:

dd bs=64 count=1 if=/dev/urandom of=/etc/cryptkey iflag=fullblock
chmod 600 /etc/cryptkey

bharath1097

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

bharath1097

• http://the-paper-trail.org/blog/distributed-systems-theory-for-the-distributed-systems-engineer/
• https://github.com/palvaro/CMPS290S-Winter16/blob/master/readings.md
• http://muratbuffalo.blogspot.com/2015/12/my-distributed-systems-seminars-reading.html
• http://christophermeiklejohn.com/distributed/systems/2013/07/12/readings-in-distributed-systems.html
• http://michaelrbernste.in/2013/11/06/distributed-systems-archaeology-works-cited.html
• http://rxin.github.io/db-readings/
• http://research.microsoft.com/en-us/um/people/lamport/pubs/pubs.html
• http://pdos.csail.mit.edu/dsrg/papers/
• http://scalingsystems.com/2011/09/07/reading-list-for-distributed-systems/
• http://courses.engr.illinois.edu/cs525/sp2011/sched.htm

bharath1097

• Javascript: node-pledge
• Perl: by Andrew Fresh (mirror), by rfarr
• Rust - http://pastebin.com/P89kV6uR
• Python - https://github.com/jarmani/py-openbsd-pledge
• Go lang - https://github.com/ylih/extrasys
• Lua - https://github.com/n0la/lua-openbsd
• Haskell - http://openbsd-archive.7691.n7.nabble.com/pledge-2-binding-for-Haskell-td287889.html
• .NET (C#, F# and VB) - https://github.com/NattyNarwhal/pledge.cs

bharath1097

ert

(ert-deftest foo ()
  (assert nil))

Now: M-x ert RET foo RET

apropos

Emacs makes discovery easier.