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@giudinvx
giudinvx / slideshare-downloader.sh
Last active November 17, 2022 01:00
Slideshare Downloader
#!/bin/bash
#-----------------------------------------------
# Modify 4/08/2018 by giudinvx
# Email giudinvx[at]gmail[dot]com
#-----------------------------------------------
# Author: Andrea Lazzarotto
# http://andrealazzarotto.com
# andrea.lazzarotto@gmail.com
@julionc
julionc / slideshare-dl.py
Created September 17, 2011 16:11
slideshare-dl is a small command-line program for downloading slides from SlideShare.net
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
slideshare-dl.py
~~~~~~~~~~~~~~~~
slideshare-dl is a small command-line program
for downloading slides from SlideShare.net
@jboner
jboner / latency.txt
Last active July 17, 2024 03:12
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
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active July 17, 2024 15:03
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@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
@afair
afair / gist:3803895
Last active August 7, 2023 07:43
PostgreSQL and Pgpool Architecture

Hey! I saw this has been indexed by the search engines. It is a first draft of a post I ended up publishing on my blog at: Scaling PostgreSQL With Pgpool and PgBouncer

Thanks for stopping by!

PostgreSQL and Pgpool Architecture

@naholyr
naholyr / _service.md
Created December 13, 2012 09:39
Sample /etc/init.d script

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)
@amitchhajer
amitchhajer / Count Code lines
Created January 5, 2013 11:08
Count number of code lines in git repository per user
git ls-files -z | xargs -0n1 git blame -w | perl -n -e '/^.*\((.*?)\s*[\d]{4}/; print $1,"\n"' | sort -f | uniq -c | sort -n
@vgoklani
vgoklani / app.py
Last active December 19, 2022 09:13
Using Flask to output Python data to High Charts
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
@app.route('/index')
def index(chartID = 'chart_ID', chart_type = 'bar', chart_height = 350):
chart = {"renderTo": chartID, "type": chart_type, "height": chart_height,}
series = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [4, 5, 6]}]
title = {"text": 'My Title'}
@MattSurabian
MattSurabian / PackerPolicy.json
Last active May 27, 2022 21:46
Minimum IAM policy required by AWS for Packer to do its thing. https://github.com/mitchellh/packer Permissions are broken out by API functionality and a resource array has been defined with a wild card for each group. For tighter security resource level permissions can be applied per this documentation: http://aws.typepad.com/aws/2013/07/resourc…
{
"Statement": [
{
"Sid": "PackerSecurityGroupAccess",
"Action": [
"ec2:CreateSecurityGroup",
"ec2:DeleteSecurityGroup",
"ec2:DescribeSecurityGroups",
"ec2:AuthorizeSecurityGroupIngress",
"ec2:RevokeSecurityGroupIngress"