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@earthgecko
earthgecko / bash.generate.random.alphanumeric.string.sh
Last active July 4, 2024 17:31
shell/bash generate random alphanumeric string
#!/bin/bash
# bash generate random alphanumeric string
#
# bash generate random 32 character alphanumeric string (upper and lowercase) and
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1
@alphazo
alphazo / gist:3303282
Created August 9, 2012 11:03
Clone MiFare cards using chinesse UUID writable cards

libnfc supports UUID writable cards and even has some dedicated tools for them.

However it doesn't work with some of the cards found on eBay that are even simpler to use. Sector 0 is unlocked and can be written without any additional commands. libnfc requires a small patch to get it working.

Following has been tested under ArchLinux with modified libnfc 1.5.1, mfoc 0.10.2 and a SCL3711 dongle.

Patch & recompile libnfc

The patch is fairly simple, open libnfc-1.5.1/utils/nfc-mfclassic.c and comment 2 lines (it was lines 384 and 385 for me):

// Try to write the trailer

@anshula
anshula / phoronix-cmd.md
Last active March 22, 2024 21:43
Phoronix Test Suite Cheat Sheet
@joar
joar / jq-insert-var.sh
Last active July 25, 2024 00:55
Add a field to an object with JQ
# Add field
echo '{"hello": "world"}' | jq --arg foo bar '. + {foo: $foo}'
# {
# "hello": "world",
# "foo": "bar"
# }
# Override field value
echo '{"hello": "world"}' | jq --arg foo bar '. + {hello: $foo}'
{
@anubhavsinha
anubhavsinha / cwl.sh
Created October 31, 2015 18:46
send events to a stream in a log group in cloudwatch - for elastic search
aws logs put-log-events --log-group-name anubhav-PoC --log-stream-name anubhav-PoC --log-events "[{\"timestamp\":`date +%s%3N`, \"message\": \"Simple ElasticSearch Test\"}]"
@jamesramsay
jamesramsay / README.md
Last active July 14, 2024 23:02
Gmail: delete old emails automatically

Gmail: delete old emails automatically

Automatically deletes old emails that match the specified label.

Get started

  • Create a new Google Apps Script at https://script.google.com
  • Overwrite the placeholder with the javascript below
  • Update the following constants:
  • LABEL_TO_DELETE: the label that should be have old messages deleted
@maxvt
maxvt / infra-secret-management-overview.md
Last active July 5, 2024 13:01
Infrastructure Secret Management Software Overview

Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.

This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.

There is a companion feature matrix of various tools. Comments are welcome in the same manner.

@andrius
andrius / Procfile
Last active July 22, 2022 22:00
How to dockerize #rails app with #puma. Edit config/application.rb and config/puma.rb #docker #ruby
api: bundle exec puma -C config/puma.rb
@nicolaballotta
nicolaballotta / kubecontext.zsh
Last active February 14, 2023 23:46
Add Kubernetes context to your zsh prompt (for Agnoster theme, but can easily be adapted to different themes)
# INSTALLATION
# - Add the following function to your .oh-my-zsh/themes/agnoster.zsh-theme
# - Call prompt_kubecontext from build_prompt() as showed in the example below
#
#
# build_prompt() {
# prompt_kubecontext
# }
@simonswine
simonswine / copy-k8s-resources-across-namespaces.sh
Created August 2, 2016 13:40
Copying kubernetes resources accross namespaces
kubectl get rs,secrets -o json --namespace old | jq '.items[].metadata.namespace = "new"' | kubectl create-f -