Useful bash tips

tips.sh

# Fix locale error
# Put this into /etc/environment
LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8

# SSH agent
eval `ssh-agent -s`

# Add a key to the keychain
ssh-add ~/.ssh/id_rsa

# Use SSH Agent
ssh -A ubuntu@192.168.1.1

# Adding a line after the bash prompt
export PS1="$PS1\n> "

# Add this line to .bashrc
echo "export PS1=\"$PS1\\n> \"" >> .bashrc; source .bashrc

# Simple Bash Prompt
export PS1="\[\e[34m\]\u\[\e[m\]\[\e[31m\]@\[\e[m\]\[\e[34m\]\h\[\e[m\]\[\e[32m\][\[\e[m\]\w\[\e[32m\]]\[\e[m\]\n$ "

# Run command through SSH
ssh USER@HOST 'COMMAND'

# Accept all keys
ssh -oStrictHostKeyChecking=no

# Align tmux windows evenly
# This commands must be entered after pressing ctrl+b+:

# Vertically
select-layout even-vertical

# Horizontally
select-layout even-horizontal

# Install docker on Ubuntu
sudo apt-get remove docker docker-engine docker.io containerd runc
sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo apt-key fingerprint 0EBFCD88
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io
sudo groupadd docker
sudo usermod -aG docker $USER
newgrp docker
docker run hello-world

# Custom aliases
alias ll="ls -al --color=auto"
alias cls=clear
alias cd..="cd .."

alias python=python3
alias pip=pip3

# Update Yum
yum update -y

# Install docker on Amazon Linux 2
amazon-linux-extras install docker -y
service docker start
usermod -a -G docker ec2-user
chkconfig docker on
yum install -y git
curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

# Install Ansible
yum install -y python3-pip
pip3 install pip --upgrade
pip3 install ansible