Jay jay-johnson

## Setting up X11 for use on an EC2 host.md

      
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                / Setting up X11 for use on an EC2 host.md
            
            
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                Setting up X11 for use on an EC2 host
              
          
    Run this on EC2 host


Set these attributes in /etc/ssh/sshd_config

# cat /etc/ssh/sshd_config  | grep X11
X11Forwarding yes 
X11DisplayOffset 10
X11UseLocalhost yes 


## Polars Rust - Convert DataFrame Epoch Column in Milliseconds (i64) to a UTC date-formatted string
let date_utc_str_s: Series = Series::new(
    "date_utc_str",
    df
        .column("date")
        .unwrap()
        .cast(&DataType::Datetime(
            polars::datatypes::TimeUnit::Milliseconds,
            None))
        .unwrap()
        .strftime("%Y-%m-%dT%H:%M:%SZ")

## Open a file at specific line and column with vim.md

      
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                / Open a file at specific line and column with vim.md
            
            
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                Open a file at specific line and column with vim
              
          
    Open a file at specific line and column with vim

Example error message when deserializing json:
expected a string at line 1 column 435
# cursor(LINE_NUM, COL_NUM)
vi file-with-nested-json-error.json "+call cursor(1, 435)"

  
## example .travis.yml
sudo: required

language: ruby

services:
  - docker

before_install:
  - echo "Testing Docker Hub credentials"
  - docker login -e=$DOCKER_EMAIL -u=$DOCKER_USERNAME -p=$DOCKER_PASSWORD

## Installing Docker, Docker Machine, Docker Swarm, Docker Compose, and consul
#!/bin/bash

# Allow toggling components to install and update based off flags
updateconsul=1
updatedocker=1
updatedockermachine=1
updatedockercompose=1
updatedockerswarm=1

consulversion="0.5.2"

## install-ycm-with-vim-src.sh
#!/bin/bash

function install_ycm() {
    mkdir -p ~/.vim
    curdir=$(pwd)
    if [[ "$(which xcode-select)" != "" ]]; then
        # you may need to install packages with: xcode-select --install
        echo ""
        echo "installing XQuartz"
        ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null ; brew install caskroom/cask/brew-cask 2> /dev/null

## grow-fs.sh
#!/bin/bash

# example from
# for donkey car
# https://serverfault.com/questions/870594/resize-partition-to-maximum-using-parted-in-non-interactive-mode

set -e

if [[ $# -eq 0 ]] ; then
    echo 'please tell me the device to resize as the first parameter, like /dev/sda'

## location: etc_sysconfig_network-scripts - ifcfg-eno1
DEVICE=eno1
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes

## use system for libvirt.sh
export LIBVIRT_DEFAULT_URI="qemu:///system"

## .bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac
	let date_utc_str_s: Series = Series::new(
	"date_utc_str",
	df
	.column("date")
	.unwrap()
	.cast(&DataType::Datetime(
	polars::datatypes::TimeUnit::Milliseconds,
	None))
	.unwrap()
	.strftime("%Y-%m-%dT%H:%M:%SZ")
	sudo: required

	language: ruby

	services:
	- docker

	before_install:
	- echo "Testing Docker Hub credentials"
	- docker login -e=$DOCKER_EMAIL -u=$DOCKER_USERNAME -p=$DOCKER_PASSWORD
	#!/bin/bash

	# Allow toggling components to install and update based off flags
	updateconsul=1
	updatedocker=1
	updatedockermachine=1
	updatedockercompose=1
	updatedockerswarm=1

	consulversion="0.5.2"
	#!/bin/bash

	function install_ycm() {
	mkdir -p ~/.vim
	curdir=$(pwd)
	if [[ "$(which xcode-select)" != "" ]]; then
	# you may need to install packages with: xcode-select --install
	echo ""
	echo "installing XQuartz"
	ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null ; brew install caskroom/cask/brew-cask 2> /dev/null
	#!/bin/bash

	# example from
	# for donkey car
	# https://serverfault.com/questions/870594/resize-partition-to-maximum-using-parted-in-non-interactive-mode

	set -e

	if [[ $# -eq 0 ]] ; then
	echo 'please tell me the device to resize as the first parameter, like /dev/sda'
	DEVICE=eno1
	TYPE=Ethernet
	PROXY_METHOD=none
	BROWSER_ONLY=no
	BOOTPROTO=dhcp
	DEFROUTE=yes
	IPV4_FAILURE_FATAL=no
	IPV6INIT=yes
	IPV6_AUTOCONF=yes
	IPV6_DEFROUTE=yes
	# ~/.bashrc: executed by bash(1) for non-login shells.
	# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
	# for examples

	# If not running interactively, don't do anything
	case $- in
	i) ;;
	*) return;;
	esac