Prototyping X

Session 1

Unix

Unix is a portable, multitasking, multiuser, time-sharing operating system (OS) originally developed in 1969 by a group of employees at AT&T.

Raspberry Pi

Raspberry Pi is the name of a series of single-board computers made by the Raspberry Pi Foundation, a UK charity that aims to educate people in computing and create easier access to computing education.

Session 2

Session 2 pad

Creating a key

Key for our user in pi (created in the first session)
Our ssh key

Output in terminal when creating a key

+---[RSA 2048]----+         
|BEo       .      |
|**o      +       |
|=o+     . +      |
|.=o..  . +       |
|.ooo.o  S        |
|.oooo+.B +       |
|. o ..B.B        |
|      .= .       |
|     .ooB+       |
+----[SHA256]-----+

Making a secure login for the pi with our key

ls -a gives hidden files

Question: How do we create hidden files?

Git

The software that runs git softwares or companies based on git (GitHub,gitlab or git.xpub.nl)

It’s a way to keep track versions of projects (text, code, websites, images)

A git project will have a parent folder.

Parent folder- might have other folders in it with other files

git init- stating the git program in your folder (makes a git. Folder)

Command to make git track your project:
git status- shows in red what isn’t tracked and in green what is tracked
git add <file name>- starts tracking that file or files
git commit -m <“a comment about what change has been made”>- saves the version in the .git folder

HEAD- like a brunch, the version I am in right now

MASTER- like in Abstract

git diff <file name>- shows the what have change since previous commit

git checkout -- <file name>- deletes the changes that where made and comes back to the last commit

git add -u - will add all the tracked ones

git reset HEAD <name of file> - Undo a commit

git log- shows the commits

Publishing on XPUB GIT

Create a new repository
When you create it gives instructions (choose SSH in the toggle)
pushing= publish to git website

Pushing from git to raspberry pi

For now raspberry pi will just host our website
On the git website we see the published file in dashboard

*** sudo let’s you install thing on pi- sudo apt install <software name> ***

*** sudo su- you can be someone else ***

use HTTPS link (top right)
Command to clone to pi git clone <HTTPS link> name the new folder

Work flow

Clone to your computer the folder from GIT (with the ssh url)
Then you can pull changes from the GIT
Or push changes back to the GIT

More GIT

You can always revert to a previous commit on git with git log> than you copy the “name” (very long digits and numbers) of the commit. Than you do git checkout <insert name of commit you copied before>

git checkout HEAD> takes you back to the latest commit git checkout MASTER> takes you to the master

git status>shows you what is happening right now in the repository

.DS_store files that Mac makes (we want bot to see them)

cd.. go back to parent directory

ls -al > shows you regular+invisible files

Nano basic text editor (a bit like ne)

Nano .gitignore git will ignore this type of files

Example:

.DS_store
tmp/*- will ignore everything in this folder
*.jpeg- will ignore all jpeg files

git commit -m “gitignore file” .gitignore

-m is a message specific for one file

-a will commit a bundle of all files added

Commit is local

Push makes it public

User:AvitalB/prototyping

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