Interactive Katacoda Scenarios

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Syllabus

Tutorial 1: Introduction to Command-line

Running your first few commands & Navigating the filesystem with pwd, cd, ls and mkdir.

• How to run commands in a terminal window
• What a working directory is
• Find out where you are in the filesystem (pwd)
• How to list the contents of a directory (ls)
• How to make a directory (mkdir)
• How to move into a new directory (cd)
• Briefly touch upon absolute and relative paths

Command	Description
pwd	Print your working directory
ls	List the contents of a particular path
cd	Move to a particular path (or change directory)
mkdir	Make a directory at a particular path

Tutorial 2: Beginner's guide to pagers

Introduction to navigating and searching using less

• What a terminal pager program is
• How to navigate through a text file
• Searching a text file

Command	Description
less	A program to read text files

Tutorial 3: Familiarising yourself with the unfamiliar

How commands are structured and how to find out how to run unfamiliar commands (man)

• Overview of how most commands on command line are structured
• What a man page is
• How to find the man page for a given piece of software (man)
• How to read what you need from a man page
• Learning some new ways of running ls using man page info

Command	Description
man	Find and open the man page for a command
ls	List the contents of a particular path

Tutorial 4: Reading files again

Beginner tutorial for reading files on the command line.

• How to print a file to your screen
• How to print the first/last part of files to your screen
• How to do line counts, word counts etc of a file
• How to create new files from the output of commands (> and >>)
• How to be a bioinformatician pipe (|) like a pro

Command	Description
pwd	Print your working directory
ls	List the contents of a particular path
man	Find and open the man page for a command
cat	Concatenate files and print them to screen
head	Output the first part of files to screen
tail	Output the last part of files to screen
wc	Print counts of lines, words and bytes for files