Linux / Bash Cheatsheet

Collected commands, tips, and tricks for working headless in Ubuntu

• Linux
• Bash
• Ubuntu

Overview

Introduction

The purpose of this project is to document our implementation of ROS and teach lab …

• Ros
• Ubuntu
• Linux

SSH General Reference

The most useful SSH-specific commands

• Ubuntu
• Linux
• SSH
• Encryption
• Keys

GPG Reference

List gpg keys

gpg --list-keys
gpg --list-secret-keys

prints out ids

• Linux
• Ubuntu
• Gpg
• Encryption
• Keys

Installing ROS2 Humble on two Virtualbox VMs

Introduction

How do you get a ROS2 system up and running on a virtual machine, and participating on …

• Virtualbox
• Linux
• Ubuntu
• Ros2

01-Installation Notes

Introduction

These notes are from memory, so they may be out of order.

• Ubuntu
• Linux
• Virtualbox

Disabling Password-based SSH

Settings for hardening ssh on Ubuntu

• SSH
• Ubuntu
• Linux
• Security

Grep Cookbook

Using grep by itself

search for “searchtext”, ignoring case, ignoring binary files, …

• Linux
• Ubuntu
• Grep
• Bash

Remote Unlock your LUKS-encrypted Hard Drive

Updated for Ubuntu 22.04

1. Install Software

   • Ubuntu
   • Linux
   • SSH
   • Security

Using the find command in bash

Using the find command in bash

Find all files below the current directory that match …

• Linux
• Ubuntu
• Bash