yogeek

https://github.com/agnoster/agnoster-zsh-theme

Install ZSH

sudo yum install zsh

Restart your terminal. Choose option 2 for Z Shell configuration.
Don't forget to migrate your previous configurations from .bashrc to .zshrc

yogeek

# Railscast
http://railscasts.com/episodes/308-oh-my-zsh

# Install Zsh
sudo apt-get update && sudo apt-get install zsh 

# Install Oh-my-zsh
wget –no-check-certificate https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O – | sh 

# Make ZSH default shell

yogeek

# Create database owner
createuser -U postgres --createdb --createrole ${DB_OWNER};
psql --dbname ${DB_NAME} -c "ALTER USER '${DB_OWNER}' WITH PASSWORD '${DB_OWNER_PASSWORD}';"

# Create database
createdb -U ${DB_OWNER} ${DB_NAME};

# List databases
psql -U ${DB_OWNER} --list

yogeek

# In case "docker rmi" displaying the following message :
# Error response from daemon: conflict: unable to delete 599a1a74e98d (cannot be forced) - image has dependent child images

IMAGE_ID=xxxx
for i in $(docker images -q)                                                            
do
    docker history $i | grep -q $IMAGE_ID && echo $i
done | sort -u

# Then "docker rmi" the resulted images 

yogeek

./ansible.sh -i inventories/dev -c local -m template -a "src=file.j2 dest=file.txt" 127.0.0.1

 # Online tool
 https://cryptic-cliffs-32040.herokuapp.com/
 
 # https://stackoverflow.com/questions/35407822/how-can-i-test-jinja2-templates-in-ansible

yogeek

# Script to switch between HTTP and SSH git remote URL

gitswitch () {
  if [[ "$(git remote -v)" == "" ]]
  then
    echo "No remote configured. Use 'git remote add' to set one"
    return
  fi

  remoteRoot=$(git remote -v | head -1 | grep root)

yogeek

# Adapted from <https://superuser.com/questions/332252/creating-and-formating-a-partition-using-a-bash-script> 

(
echo d # Delete sda2 partition table
echo 2 # Default = sda2 
echo n # Add a new sda2 partition
echo p # Primary partition
echo 2 # Partition number
echo    # First sector (Accept default: 2099200)
echo    # Last sector (Accept default: varies, e.g 104857599)

yogeek

# Example : waiting for DB and Elasticsearch to be ready before launching a service
# The svc docker image must contain the start-when-ready.sh script

services:

  svc:
    image: svc
    environment:
      READINESS_CONDITION: '[ $$(curl --write-out %{http_code} --silent --output /dev/null http://elasticsearch:9200/_cat/health?h=st) = 200 ] && nc -w 1 -z $$DB_HOST $$DB_PORT 2>/dev/null'
      READINESS_SLEEP: 5

yogeek

---

- hosts: localhost
  vars:
    docker_machine_version: v0.14.0
  tasks:

    - name: Install Docker Machine
      get_url:
        url: "https://github.com/docker/machine/releases/download/{{ docker_machine_version }}/docker-machine-linux-x86_64"

yogeek

# List of top processes ordered by RAM and CPU use in descendant form
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head