Terminal Exercises - sandbox.bio

Terminal Exercises

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Navigating Files and Directories

Absolute vs relative paths

Using the filesystem diagram below, if pwd displays /Users/thing, what will ls -F ../backup display?

File system diagram

../backup: No such file or directory

2012-12-01 2013-01-08 2013-01-27

2012-12-01/ 2013-01-08/ 2013-01-27/

original/ pnas_final/ pnas_sub/

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Introduction

Terminal Exercises

Navigating Files and Directories

Absolute vs relative paths

Absolute vs relative paths

Ls reading comprehension

Working With Files and Directories

Moving Files to a new folder

Renaming Files

Moving and Copying

List filenames matching a pattern

Pipes and Filters

Appending data

Piping commands together

Pipe construction

Which pipe?

Removing unneeded files

Loops

Write your own loop

Limiting sets of files

Saving to a file in a loop

Saving to a file in a loop - part 2

Shell Scripts

List unique species

Variables in shell scripts

Longest file with a given extension

Finding Things

Using grep

Tracking a species

Little women

Matching and subtracting

The end

The end