Coding environment (and the shell)

Module 1

Let’s Do Digital Team

The coding environment

Today’s hands-on sessions

• We will be using the GitHub Codespace development environment.
• This is a browser based version of the well known desktop VS Code development environment.

Codespace what / where?

Useful terminal (shell) commands

Using the terminal

• Also called the command line interface (CLI) or the shell.

Steps:

• Select the terminal (aka click on it).
• Type in your command (this needs to be typed out exactly).
• Press enter to run the command.

Arrow keys

• If you want to run a previously run command, you can select it with the ↑ and ↓ arrow keys on the keyboard.

$ cd module_1
Press ↑
$ cd programming_in_healthcare

Tab

• You can use the tab key to autocomplete a file or folder name

$ cd prog
Press TAB
$ cd programming_in_healthcare

Altering the command line

• Use the ← and → arrows to move the cursor on the terminal line (the mouse does not allow you to move the cursor).
• Then make any corrections with the backspace and keyboard as needed.
• For example, to change

$ streamlit run exercise_1.py

to

$ streamlit run exercise_2.py

List files and folders command

• The ls command.

Change directory command

• The cd command.
• cd .. takes you back to the previous (parent) folder.

Where am I?

• pwd is the print working directory command.

Review

• You will be using the above commands in the hands-on sessions.
• Come back to these slides if you need to refresh your memory.

Python slides

Python slides