• It’s fast (computationally)
• You can interface it with R or other languages
• You can alter massive sets of files all at once
• You can write code to share
• Sometimes its the only choice

We have been using file paths all along.

Dot (.) is “here,” so

read.csv("./data/dates.csv)

Is “start here, then look in data for dates.csv”

.
├── data
│   ├── country_stats.csv
│   ├── country_users.csv
│   ├── dates.csv
│   ├── landing_page.csv
│   ├── pages.csv
│   ├── project_1_data.zip
│   ├── referrals.csv
│   ├── search.csv
│   ├── shop.csv
│   ├── state_stats.csv
│   └── state_users.csv
├── docs
│   └── standards_report.qmd
├── Project-1-SCMA.Rproj
├── src
│   └── PUT_CODE_HERE.txt
└── vis
    └── SAVE_VIS_HERE.txt

Every file on a computer has certain permissions attached to it.

On your computer, you typically have access to everything. On a shared computer, you may not.

On your own computer, you can run commands as super-user (sudo) to run anything regardless of permissions.

read

Can you open the file and look at it?

write

Can you make changes to the file and save them?

execute

Can you run the program (if it is one)?

ls

List files

cd

Change directory

cat

Concatenate

man

Manual for a ton of commands

nano

Tiny text editor

touch

Creates an empty file

mkdir

Makes an empty directory

cp

Copies a file or directory

mv

Moves a file or directory

rm

REMOVE FOREVER

Change Directory

cd [where you want to go]

• Use cd ~ to return to your user folder
• Can take absolute or relative paths
  • cd .. will take you up one level

.
├── data
│   ├── country_stats.csv
│   ├── country_users.csv
│   ├── dates.csv
│   ├── landing_page.csv
│   ├── pages.csv
│   ├── project_1_data.zip
│   ├── referrals.csv
│   ├── search.csv
│   ├── shop.csv
│   ├── state_stats.csv
│   └── state_users.csv
├── docs
│   └── standards_report.qmd
├── Project-1-SCMA.Rproj
├── src
│   └── PUT_CODE_HERE.txt
└── vis
    └── SAVE_VIS_HERE.txt

Topic

Advanced git/GitHub

To-Do

• Complete Worksheet
• Read: The Turing Way