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lpsantil

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  • Thousand Oaks, CA
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lpsantil / embeddedPayload.sh
Created July 7, 2025 05:14 — forked from ChrisCarini/embeddedPayload.sh
Embed TAR file in a shell script
#!/bin/bash
# Instructions:
# 1) Create your TAR archive
# tar -czpf file.tar <file1> <file2> ... <fileN>
# 2) Append the TAR file contents to the script
# cat file.tar >> embeddedPayload.sh
# 3) Run script. (./embeddedPayload.sh)
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lpsantil / piCore Zero W setup.md
Created July 3, 2025 21:19 — forked from BillyNate/piCore Zero W setup.md

Setup with TinyCore Linux (RAM only OS) on Raspberry Pi Zero W on Windows

These are the steps taken to setup piCore 14 on a Raspberry Pi with only Wi-Fi (no ethernet)
Newer version might work as well (or maybe even better), but have not been tested.

Set up piCore

  1. Download the piCore image
  2. Unpack the .zip file and write the .img file to the SD-Card (using Raspberry Pi Imager for example)
  3. Move the SD-Card to the Pi, plug in a keyboard and a screen, plug in the power source
  4. Execute backup shell command after the first boot to save generated unique SSH keys which will be used during next boots.
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lpsantil / bash_aws_jq_cheatsheet.sh
Created November 2, 2023 01:53 — forked from lukeplausin/bash_aws_jq_cheatsheet.sh
AWS, JQ and bash command cheat sheet. How to query, cut and munge things in JSON generally.
# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id
# Get 10th instance in the account
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lpsantil / generate.c
Created March 5, 2019 20:12 — forked from munificent/generate.c
A random dungeon generator that fits on a business card
#include <time.h> // Robert Nystrom
#include <stdio.h> // @munificentbob
#include <stdlib.h> // for Ginny
#define r return // 2008-2019
#define l(a, b, c, d) for (i y=a;y\
<b; y++) for (int x = c; x < d; x++)
typedef int i;const i H=40;const i W
=80;i m[40][80];i g(i x){r rand()%x;
}void cave(i s){i w=g(10)+5;i h=g(6)
+3;i t=g(W-w-2)+1;i u=g(H-h-2)+1;l(u
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lpsantil / Makefile
Created June 18, 2018 19:25 — forked from prwhite/Makefile
Add a help target to a Makefile that will allow all targets to be self documenting
# Add the following 'help' target to your Makefile
# And add help text after each target name starting with '\#\#'
help: ## Show this help.
@fgrep -h "##" $(MAKEFILE_LIST) | fgrep -v fgrep | sed -e 's/\\$$//' | sed -e 's/##//'
# Everything below is an example
target00: ## This message will show up when typing 'make help'
@echo does nothing
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lpsantil / openshift-cheatsheet.md
Created April 2, 2018 23:49 — forked from rafaeltuelho/openshift-cheatsheet.md
My Openshift Cheatsheet
  • Binary Builds
oc new-build --binary=true --name=ola2 --image-stream=redhat-openjdk18-openshift
oc start-build ola2 --from-file=./target/ola.jar --follow
oc new-app
  • Turn off/on DC triggers to do a batch of changes without spam many deployments
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lpsantil / infra-secret-management-overview.md
Created November 14, 2017 16:53 — forked from maxvt/infra-secret-management-overview.md
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.

@lpsantil
lpsantil / create-iso.sh
Created July 24, 2017 23:38 — forked from julianxhokaxhiu/create-iso.sh
Simple bash script to create a Bootable ISO from macOS Sierra Install Image from Mac App Store
#!/bin/bash
#
# Credits to fuckbecauseican5 from https://www.reddit.com/r/hackintosh/comments/4s561a/macos_sierra_16a238m_install_success_and_guide/
# Adapted to work with the official image available into Mac App Store
#
# Enjoy!
hdiutil attach /Applications/Install\ macOS\ Sierra.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app
hdiutil create -o /tmp/Sierra.cdr -size 7316m -layout SPUD -fs HFS+J
hdiutil attach /tmp/Sierra.cdr.dmg -noverify -nobrowse -mountpoint /Volumes/install_build
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lpsantil / framebuffer.c
Created July 18, 2017 07:49 — forked from FredEckert/framebuffer.c
Paint Pixels to Screen via Linux FrameBuffer
/*
To test that the Linux framebuffer is set up correctly, and that the device permissions
are correct, use the program below which opens the frame buffer and draws a gradient-
filled red square:
retrieved from:
Testing the Linux Framebuffer for Qtopia Core (qt4-x11-4.2.2)
http://cep.xor.aps.anl.gov/software/qt4-x11-4.2.2/qtopiacore-testingframebuffer.html
*/
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lpsantil / ns.sh
Created June 19, 2017 20:00 — forked from lanrat/ns.sh
netstat in bash with proc
#! /bin/bash
#get all data
ROUTE=$(cat /proc/net/route | grep -v "Iface")
TCP=$(cat /proc/net/tcp | grep "[0-9]: ")
UDP=$(cat /proc/net/udp | grep "[0-9]: ")
SOCKETS=$(ls -l $(find /proc/*/fd/ -type l 2>/dev/null) 2>/dev/null | grep socket)
parse_ipv4()