kirkins

# LINKS:
* http://www.math.harvard.edu/computing/perl/oneliners.txt
* https://gist.github.com/mischapeters/1e8eef09a0aafd4f24f0

# random line from file
perl -e 'srand;' -e 'rand($.) < 1 && ($it = $_) while <>;' -e 'print $it' file.csv

#NOTE: the above is easier with the following bash command
shuf -n 1 file.csv

kirkins

# function to create a blog post, with date in name, and a timestamp
function blog() {
  BLOG_DIRECTORY="/home/philip/Projects/notes/_posts/"
  TEMPLATE=".template"
  cp ${BLOG_DIRECTORY}${TEMPLATE} $BLOG_DIRECTORY`date +%Y-%m-%d`-$1.md
  vi ${BLOG_DIRECTORY}"`date +%Y-%m-%d`"-$1.md -c ":%s/DATE/\=strftime(\"%y-%m-%d %H:%M:%S\")/g"
}

kirkins

language: node_js
node_js:
- '0.10'
before_install:
- npm install -g grunt-cli
script:
- grunt
branches:
  only:
- gh-pages

kirkins

// Change references to my github repo to your own
<script>
// use of ajax vs getJSON for headers use to get markdown (body vs body_htmml)
// todo: pages, configure issue url, open in new window?

var CurrentPage = 0;

function ParseLinkHeader(link)
{
    var entries = link.split(",");

kirkins

pip_install_save() {
    package_name=$1
    requirements_file=$2
    if [[ -z $requirements_file ]]
    then
        requirements_file='./requirements.txt'
    fi
    sudo pip install $package_name && pip freeze | grep -i $package_name >> $requirements_file
}

kirkins

# command to remove all containers and images, with y/N prompt
rmdocker() {
read -r -p "Are you sure you want to remove all docker data? [y/N] " response
case "$response" in
    [yY][eE][sS]|[yY])
        docker kill $(docker ps -q)
        docker rm $(docker ps -a -q)
        docker rmi $(docker images -q)
        docker volume rm $(docker volume ls -q)
        docker network rm $(docker network ls -q)

kirkins

#!/usr/bin/env bash

for branch in $(git for-each-ref --format='%(refname)' refs/heads/); do
  git checkout "$branch"
  # run commands on branch here
done

kirkins

def fibonacci(n)
  fib_iter(1, 0, n)
end

def fib_iter(a, b, n)
  n == 0 ? b : fib_iter((a+b), a, (n-1))
end

kirkins

# Get audio level or set audio level

function volume() {
  if [ $# -eq 0 ]
  then
    awk -F"[][]" '/dB/ { print $2 }' <(amixer sget Master)
  else
    amixer -D pulse sset Master $1%
  fi
}

kirkins

# output to a video file
ffmpeg -re -f video4linux2 -i /dev/video0 out.mp4

# output format flash to local live stream
# this requires RTMP server to be running
ffmpeg -re -f video4linux2 -i /dev/video0 -f flv rtmp://localhost/live/test