BASH Function to Install Docker

The following BASH script/function tries to install the latest version of the Docker via the get.docker.com site, if you have already installed docker, it will try to update it – however you should re-login to docker and re-connect to SSH afterwards.

#!/bin/bash

install_docker() {
    sudo apt update
    # curl/git used by docker
    sudo apt install -y curl git
    curl https://get.docker.com | sh
    if [ "$EUID" -ne 0 ]; then 
        echo "You need 'docker login' and 'service ssh restart' again" 
        echo "for docker to function correctly"
        echo "Adding user $(whoami) to docker group"
        sudo usermod -aG docker $(whoami)
    fi
}

install_docker

To install docker, you would also need to install some dependencies such as: curl and git.

BASH Programming/Shell

• Alarming on High Disk Usage using BASH, AWK, Crontab Job
• Compute GCD in Bash with Input Validation
• Why a Leading Space in Linux Shell Commands Can Matter?
• How to Get HTTP Response Code using cURL Command?
• Three Interesting/Fun BASH Commands
• One Interesting Linux Command (Steam Locomotive in BASH)
• Simple Bash Function to Repeat a Command N times with Retries
• How to Extract a Domain Name from a Full URL in BASH?
• BASH Function to Compute the Greatest Common Divisor and Least Common Multiples
• BASH Function to Get Memory Information via AWK
• BASH Function to Escape Parameters Argument
• BASH Function to Check if sudo Available
• Full Permutation Algorithm Implementation in BASH
• BASH Function to Install Docker
• A Simple BASH Function/Script to Run a Command in Background
• BASH Script to Compute the Average Ping to a Domain
• A Bash Process Controller to Start, Stop and Restart an Daemon Program
• Linux BASH shell - Echo This if you get angry
• Bash SHELL, Chess Board Printing

–EOF (The Ultimate Computing & Technology Blog) —