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@ezimuel
ezimuel / sign.sh
Created March 14, 2016 15:50
Sign and verify a file using OpenSSL command line tool. It exports the digital signature in Base64 format.
#!/bin/bash
# Sign a file with a private key using OpenSSL
# Encode the signature in Base64 format
#
# Usage: sign <file> <private_key>
#
# NOTE: to generate a public/private key use the following commands:
#
# openssl genrsa -aes128 -passout pass:<passphrase> -out private.pem 2048
# openssl rsa -in private.pem -passin pass:<passphrase> -pubout -out public.pem
@bruth
bruth / README.md
Last active December 13, 2024 17:35
Postgres push notification

Postgres push triggers

Watch a table for changes and push a notification with a payload describing the change.

Example

In the Postgres shell:

-- Create the functions
@subfuzion
subfuzion / curl.md
Last active April 2, 2026 08:34
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

@jmoody
jmoody / README.md
Last active June 24, 2023 10:13
diffing binary plists and mobileprovisions

~/.gitatrributes

*.plist diff=plist
*.mobileprovision diff=mobileprovision

~/.gitconfig

@alanwill
alanwill / s3-bucket-move
Created December 5, 2015 20:27
Move an S3 bucket to a different region
aws s3 sync s3://oldbucket s3://newbucket --source-region us-west-1 --region us-west-2
@paulirish
paulirish / what-forces-layout.md
Last active April 4, 2026 18:29
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@weavenet
weavenet / delete_all_object_versions.sh
Created May 4, 2015 05:21
Delete all versions of all files in s3 versioned bucket using AWS CLI and jq.
#!/bin/bash
bucket=$1
set -e
echo "Removing all versions from $bucket"
versions=`aws s3api list-object-versions --bucket $bucket |jq '.Versions'`
markers=`aws s3api list-object-versions --bucket $bucket |jq '.DeleteMarkers'`
@githubutilities
githubutilities / README.md
Last active March 18, 2026 12:21
Shadowsocks proxy and ssh proxy

Shadowsocks Proxy

apt-get install python-pip
pip install shadowsocks

sudo ssserver -p 443 -k password -m aes-256-cfb --user nobody -d start
@siannopollo
siannopollo / README.md
Last active July 13, 2022 19:58 — forked from iamatypeofwalrus/README.md
Pluck in batches

pluck_in_batches

Sometimes you need to iterate over a ton of items and you don't want the overhead of creating AR objects out of all of them. Hell, you only need a few things! Well, #pluck has your back.

But what if you want to iterate over many tonnes of items?

Pluck in batches to the rescue!

Enjoy!