Smart Cities 2021: Difference between revisions
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= Smart Cities 2021 = | = Smart Cities 2021 = | ||
== Navigation on the Raspberry Pi == | == Navigation on the Raspberry Pi == | ||
== | |||
== | * In this first home lesson we will be learning how to start doing some basic activities with the Raspberry Pi. | ||
== | |||
=== Learning Objectives === | |||
* Learn how to navigate the Linux directory | |||
* Finding the Raspberry Pi internal IP address | |||
* Make directories and files in the Terminal | |||
* Learn how to read and modify files | |||
* Updating the Raspberry Pi system software library | |||
=== Learn how to navigate the Linux directory === | |||
==== Open the Raspberry Pi Terminal ==== | |||
* From the Raspberry Pi desktop open up the Terminal. | |||
* The Terminal is the small black box looking icon at the top left of the Desktop | |||
* When you open the Terminal it will appear as a large window with a black background. | |||
* All inputs to this window will be text (command based). We won't use a mouse. | |||
[[File:Screen Shot 2021-12-16 at 9.07.52 pm.png]] | |||
==== Adjusting font settings ==== | |||
* When you first open the Terminal you may need to adjust the Font settings. | |||
* To edit settings, from the top drop-down menu select Edit > Preferences. | |||
* Click on the box to the right of Terminal font. | |||
[[File:Screen Shot 2021-12-16 at 9.10.35 pm.png]] | |||
* This will open up another window where you can adjust font size and type. | |||
* Increase the font size to 18. | |||
* Click Select and then OK to make the changes permanent. | |||
[[File:Screen Shot 2021-12-16 at 9.12.09 pm.png]] | |||
=== Navigating on the Raspberry Pi === | |||
==== Check for files and directories ==== | |||
* Now that we know how to open up the Terminal we can use it to navigate around the Raspberry Pi. | |||
* When we start we are in the user pi home directory. | |||
* To list all the files and directories we enter the command ls | |||
* You should see a list appear: | |||
** white items are files | |||
** blue items are directories (directories can be empty, or have other files and directories inside) | |||
[[File:Screen Shot 2021-12-16 at 9.14.02 pm.png]] | |||
==== Navigating up and down directories ==== | |||
* The directory structure on the Raspberry Pi is arranged in the form of a tree. | |||
* To go back down the tree - towards the root - we need to enter the command cd .. (cd and two dots) | |||
* cd is short for Change Directory | |||
* Every time we enter this command (cd ..) it will take us down the tree. | |||
* The Terminal tells us that we have moved down one branch and are now in the /home directory | |||
[[File:Screen Shot 2021-12-16 at 9.18.06 pm.png]] | |||
* If we enter the command cd .. again it will take us right down to the root of the tree. | |||
* This is symbolised by the / (forward slash) symbol. | |||
* Using the ls command we can have a look around to see what branches are coming up out of the root (/) directory. | |||
* Enter the command ls | |||
Latest revision as of 10:24, 16 December 2021
Smart Cities 2021
- In this first home lesson we will be learning how to start doing some basic activities with the Raspberry Pi.
Learning Objectives
- Learn how to navigate the Linux directory
- Finding the Raspberry Pi internal IP address
- Make directories and files in the Terminal
- Learn how to read and modify files
- Updating the Raspberry Pi system software library
Open the Raspberry Pi Terminal
- From the Raspberry Pi desktop open up the Terminal.
- The Terminal is the small black box looking icon at the top left of the Desktop
- When you open the Terminal it will appear as a large window with a black background.
- All inputs to this window will be text (command based). We won't use a mouse.
Adjusting font settings
- When you first open the Terminal you may need to adjust the Font settings.
- To edit settings, from the top drop-down menu select Edit > Preferences.
- Click on the box to the right of Terminal font.
- This will open up another window where you can adjust font size and type.
- Increase the font size to 18.
- Click Select and then OK to make the changes permanent.
Check for files and directories
- Now that we know how to open up the Terminal we can use it to navigate around the Raspberry Pi.
- When we start we are in the user pi home directory.
- To list all the files and directories we enter the command ls
- You should see a list appear:
- white items are files
- blue items are directories (directories can be empty, or have other files and directories inside)
- The directory structure on the Raspberry Pi is arranged in the form of a tree.
- To go back down the tree - towards the root - we need to enter the command cd .. (cd and two dots)
- cd is short for Change Directory
- Every time we enter this command (cd ..) it will take us down the tree.
- The Terminal tells us that we have moved down one branch and are now in the /home directory
- If we enter the command cd .. again it will take us right down to the root of the tree.
- This is symbolised by the / (forward slash) symbol.
- Using the ls command we can have a look around to see what branches are coming up out of the root (/) directory.
- Enter the command ls