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@metafloor
metafloor / zpl-quick-reference.md
Last active April 15, 2025 11:27
ZPL Quick Reference

ZPL Commands

Command Format Description
^A ^Afo,h,w,d:f.x Use Scalable/Bitmapped Font
^A@ ^A@o,h,w,d:f.x Use Font Name to Call Font
^B0 ^B0a,b,c,d,e,f,g Aztec Bar Code Parameters
^B1 ^B1o,e,h,f,g Code 11 Bar Code
^B2 ^B2o,h,f,g,e,j Interleaved 2 of 5 Bar Code
^B3 ^B3o,e,h,f,g Code 39 Bar Code
@maximecb
maximecb / music.csv
Created May 19, 2018 17:21
Python program to sequence MIDI music using a CSV spreadsheet
X kick snare
X
X
X
X kick
X
X
X
X kick snare clap
X
@arjunvenkat
arjunvenkat / gist:1115bc41bf395a162084
Last active January 12, 2024 05:04
Seeding a Rails database with a CSV file

How to seed a Rails database with a CSV file

1. Setup

First, Create a folder inside of lib called seeds

Put your CSV file example.csv into the lib/seeds folder. In the example below, the file is called real_estate_transactions.csv

Make sure you've created a resource with the appropriate columns to match your seed data. The names don't have to match up.

@mantognini
mantognini / countries.txt
Last active March 12, 2020 11:56
countries
Afghanistan
Albania
Algeria
Andorra
Angola
Antigua & Deps
Argentina
Armenia
Australia
Austria
@gunjanpatel
gunjanpatel / amazon-ec2-ftp.md
Last active October 10, 2023 15:31
amazon ec2 LAMP and FTP installation and setup
@imjasonh
imjasonh / markdown.css
Last active January 3, 2025 20:15
Render Markdown as unrendered Markdown (see http://jsbin.com/huwosomawo)
* {
font-size: 12pt;
font-family: monospace;
font-weight: normal;
font-style: normal;
text-decoration: none;
color: black;
cursor: default;
}
@omgmog
omgmog / gist:33ec177eea6b78adbaf3
Created May 28, 2014 14:28
Convert an m4v to gif with ffmpeg
ffmpeg -i input.m4v -pix_fmt rgb24 -r 10 -y -s [width]x[height] output.gif
@ndarville
ndarville / webm.md
Last active March 11, 2025 17:21
4chan’s guide to converting GIF to WebM - https://boards.4chan.org/g/res/41212767

Grab ffmpeg from https://www.ffmpeg.org/download.html

It's a command line tool which means you will have to type things with your keyboard instead of clicking on buttons.

The most trivial operation would be converting gifs:

ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm
  • -crf values can go from 4 to 63. Lower values mean better quality.
  • -b:v is the maximum allowed bitrate. Higher means better quality.
@PWSdelta
PWSdelta / rspec_model_testing_template.rb
Last active March 11, 2025 21:14
Rails Rspec model testing skeleton & cheat sheet using rspec-rails, shoulda-matchers, shoulda-callbacks, and factory_girl_rails. Pretty much a brain dump of examples of what you can (should?) test in a model. Pick & choose what you like, and please let me know if there are any errors or new/changed features out there. Reddit comment thread: http…
# This is a skeleton for testing models including examples of validations, callbacks,
# scopes, instance & class methods, associations, and more.
# Pick and choose what you want, as all models don't NEED to be tested at this depth.
#
# I'm always eager to hear new tips & suggestions as I'm still new to testing,
# so if you have any, please share!
#
# @kyletcarlson
#
# This skeleton also assumes you're using the following gems:
@wrburgess
wrburgess / gist:2187164
Created March 24, 2012 19:37
Setting up a Rails has_many :through relationship with meaningful relationship table #rails #activerecord #relations

##References

##Create Models

Create tables:

rails g model Location
rails g model User
rails g model Checkin