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Unix Command Line

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Natalie Elphick edited this page Mar 4, 2024 · 20 revisions

Description

Knowing how to use the command line of your computer can save you a lot of time. In these workshops, you will learn how to navigate the Unix terminal, process files, set permissions, etc. The only thing you need is a Mac or Linux laptop (you can use Windows if you can’t access a Linux machine).

Part I (Introductory):

  • What is the command line?
  • Navigating the file system
  • Installing software
  • Files & permissions
  • Downloading files from the internet
  • Manipulating and searching text files

Part II (Intermediate):

  • File Compression/decompression
  • System variables
  • Shell scripting
  • Other helpful commands
  • AWK - advanced text manipulation

Learning Path

The two workshops in this series are divided into novice and intermediate/advanced.

Novice

  • Part I (Introductory)

This is an introductory workshop in the Computer Skills series. No prior experience required. No prerequisites. Click here to access the workshop slides.

Intermediate

  • Part II (Intermediate)

The second part will cover more advanced commands and shell scripting. This workshop is intended for those who have completed the Introductory workshop. Click here to access the workshop slides.

Pre-workshop Instructions

Mac/Linux

  • No need to install anything, these operating systems are UNIX based.
  • To open your terminal on your Mac, just press Cmd + Space and type "terminal". On Linux just press Ctrl+Alt+T.
  • This workshop will be taught using the bash shell.
  • Check which shell your terminal is set to by typing echo $0 and pressing enter/return.
  • If it is not set to bash, you can change it by typing chsh -s /bin/bash and pressing enter/return. You will need to restart your terminal for the changes to take effect.

Windows

Since Windows is not a UNIX based operating system, Windows Subsystem for Linux (WSL) is required to access the UNIX command line. This allows you to run a virtual machine on your PC that runs the Ubuntu OS (UNIX based).

  • Open the Microsoft Store and search for "Ubuntu 22.04.3 LTS".
  • Click on the "Ubuntu 22.04.3 LTS" app and click "Get" to install it.
  • Once installed, click "Launch" to open the Ubuntu terminal.
  • You will be prompted to create a username and password for your Ubuntu account (can be different from your Windows user account).
  • Open the app to access terminal
  • Open the properties of the Ubuntu terminal by right clicking on the title bar and selecting "Properties".
  • In the "Options" tab, check the box next to "Use Ctrl+Shift+C/V as Copy/Paste" and click OK.
  • Note that copy and paste in the Ubuntu terminal is done using Ctrl+Shift+C and Ctrl+Shift+V, respectively.
  • You are now ready to use the UNIX command line on your Windows machine.

If you run into any issues, contact us at the emails on the bottom of this page.

Online Learning

You can access these materials remotely at any time and go through them at your own pace. Just follow the commands in the slides. Type each command in your terminal and press enter/return.

If you have any questions, please contact Natalie Elphick ([email protected]) or the Bioinformatics Core ([email protected]).

Additional recommended materials for online learning

  1. Software carpentry provides a self paced course: The Unix Shell

  2. Free online books:

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