MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

softwaredoug

What I did to get Python 3.4.2 on Ubuntu 14.04. The stock version of Python 3 on Ubuntu is 3.4.0. Which is missing some of the best parts! (asyncio, etc). Luckily I discovered pyenv which solved my problem.

Install pyenv

Pyenv (not to be confused with pyvenv) is the Python equivelant of rbenv. It lets you configure which Python environment/version is available per directory, user, or other session variables.

I followed the instructions here to install pyenv in my home directory. Verbatem, those instructions are:

sudo apt-get install git python-pip make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev

dancingfrog

#!/bin/sh
### BEGIN INIT INFO
# Provides:          GeoServer
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Starts and stops the GeoServer, which should be located at /usr/share/geoserver
### END INIT INFO

bruceh48

// See this for important info :

http://docs.geoserver.org/stable/en/user/_sources/rest/examples/curl.txt


// Get all workspaces
curl -v -u admin:geoserver -GET http://localhost:8080/geoserver/rest/workspaces.xml

// Create a new WORKSPACE
curl -u admin:geoserver -v -XPOST -H 'Content-type:text/xml'

assertivist

#!/bin/bash

# put your instance id here
instance="dev######"
# make sure your password doesn't have shell operators in it
credentials="admin:password"

while true; do
    entropy=`rand`
    outdata="{\"short_description\":\"Automated incident $entropy\"}"

vepetkov

##################################################################
## Native hdfs access (only on the cluster)
# conda install -c conda-forge libhdfs3=2.3.0=1 hdfs3 --yes
import hdfs3
import pandas as pd

nameNodeHost = 'hadoopnn1.localdomain'
nameNodeIPCPort = 8020
hdfs = hdfs3.HDFileSystem(nameNodeHost, port=nameNodeIPCPort)

entropiae

Install pyenv on Ubuntu 18.04 + fish shell

- Install the packages required to compile Python
$ sudo apt-get update; sudo apt-get install --no-install-recommends make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

- Download pyenv code from github
$ git clone https://github.com/pyenv/pyenv.git ~/.pyenv

- Define environment variable PYENV_ROOT to point to the path where pyenv repo is cloned
$ echo "set --export PYENV_ROOT $HOME/.pyenv" > ~/.config/fish/conf.d/pyenv.fish

sempervent

#!/usr/bin/env bash
# ex: set fdm=marker
# usage {{{1 
#/ Usage: 
#/    -h|-?|--help)
#/       show this help and exit
#/
# 1}}} 
# environment {{{1 
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

jef

const puppeteer = require("puppeteer");
const opn = require("opn");
const nodemailer = require("nodemailer");

const timeout = 5000;
const waitForTimeout = 1000;

const cartLink =
  "https://store.nvidia.com/store/nvidia/en_US/buy/productID.5438481700/clearCart.yes/nextPage.QuickBuyCartPage";