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@linuslundahl
linuslundahl / Ignore .DS_Store forever
Created September 13, 2010 09:55
Make git always ignore .DS_Store
$ git config --global core.excludesfile ~/.gitignore
$ echo .DS_Store >> ~/.gitignore
@jboner
jboner / latency.txt
Last active August 13, 2026 07:02
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@brandonb927
brandonb927 / osx-for-hackers.sh
Last active July 4, 2026 22:27
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx
@gbaman
gbaman / HowToOTGFast.md
Last active June 7, 2026 20:18
Simple guide for setting up OTG modes on the Raspberry Pi Zero, the fast way!

Setting up Pi Zero OTG - The quick way (No USB keyboard, mouse, HDMI monitor needed)

More details - http://blog.gbaman.info/?p=791

For this method, alongside your Pi Zero, MicroUSB cable and MicroSD card, only an additional computer is required, which can be running Windows (with Bonjour, iTunes or Quicktime installed), Mac OS or Linux (with Avahi Daemon installed, for example Ubuntu has it built in).
1. Flash Raspbian Jessie full or Raspbian Jessie Lite onto the SD card.
2. Once Raspbian is flashed, open up the boot partition (in Windows Explorer, Finder etc) and add to the bottom of the config.txt file dtoverlay=dwc2 on a new line, then save the file.
3. If using a recent release of Jessie (Dec 2016 onwards), then create a new file simply called ssh in the SD card as well. By default SSH i

@noromanba
noromanba / apt-daily-timer-disable.md
Created December 25, 2016 17:51
how to disable apt-daily.timer

how to disable apt-daily.timer

$ systemctl stop apt-daily.timer
$ systemctl disable apt-daily.timer
$ systemctl mask apt-daily.service
$ systemctl daemon-reload

check current status

@Prajjwal
Prajjwal / ephemeral-file-sharing-services.md
Last active May 22, 2026 22:55
A List of Ephemeral File Sharing Services

A List of Ephemeral File Sharing Services

Contributions welcome.

~ Prajjwal Singh

Service CLI? Max Size Direct Access Files Expire? Can Limit Download Count? Password Protection HTTPS
c-v.sh curl -F 4 GB Yes Yes, by Mister Alg. No No Enforced
FileIO Yes 5 GB Yes Optionally Fixed @ 1 No Yes
# Bash best practices and style-guide
Just simple methods to keep the code clean.
Inspired by [progrium/bashstyle](https://github.com/progrium/bashstyle) and [Kfir Lavi post](http://www.kfirlavi.com/blog/2012/11/14/defensive-bash-programming/).
## Quick big rules
* All code goes in a function
* Always double quote variables
@gboudreau
gboudreau / AuthyToOtherAuthenticator.md
Last active July 11, 2026 13:23 — forked from Ingramz/AuthyToOtherAuthenticator.md
Export TOTP tokens from Authy

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

display torig borig; # Display the top and bottom origins
group all; # Group everything
smash (C>0 0); # Smash everything in the group
display none tname bname tval bval; # OPTIONAL: limit changes to
names and values
group all; # Group everything including smashed texts.
change font vector (C>0 0); # Change the font to a vector font
change size 50mil (C>0 0); # Change the font size
change ratio 15 (C>0 0); # Change the width:height ratio
@zthxxx
zthxxx / Activate Office 2019 for macOS VoL.md
Last active August 12, 2026 05:31
crack activate Office on mac with license file