PowerShell on macOS - Step-by-Step Execution

Concept Flow - PowerShell on macOS

Open Terminal on macOS

↓

Check if PowerShell is installed

↓

Run pwsh

↓

Use PowerShell prompt

↓

Run PowerShell commands/scripts

↓

Exit PowerShell or Terminal

This flow shows how to start PowerShell on macOS: open Terminal, check/install PowerShell, run commands, then exit.

Execution Sample

PowerShell

pwsh
Write-Output "Hello from PowerShell on macOS"
exit

Starts PowerShell, prints a message, then exits PowerShell.

Execution Table

Step	Action	Command Entered	Output	State
1	Open Terminal and start PowerShell	pwsh	PowerShell prompt appears	PowerShell running
2	Run a command to print text	Write-Output "Hello from PowerShell on macOS"	Hello from PowerShell on macOS	Output displayed
3	Exit PowerShell session	exit	Terminal prompt returns	PowerShell exited

💡 PowerShell session ends after 'exit' command, returning to macOS Terminal.

Variable Tracker

Variable	Start	After Step 1	After Step 2	After Step 3
PowerShell Session	Not running	Running	Running	Not running
Output	None	None	"Hello from PowerShell on macOS"	None

Key Moments - 3 Insights

Why do I need to type 'pwsh' in Terminal on macOS?

Typing 'pwsh' starts the PowerShell environment inside the macOS Terminal, as PowerShell is not the default shell.

What happens if PowerShell is not installed on macOS?

If PowerShell is not installed, the 'pwsh' command will fail; you need to install PowerShell first before running it, as shown in the flow's 'Install PowerShell' step.

Why does the output appear after 'Write-Output' command?

The 'Write-Output' command sends text to the console, so you see the message printed in the PowerShell prompt, as shown in step 2 of the execution table.

Visual Quiz - 3 Questions

Look at the execution table, what is the state after step 1?

A PowerShell running

B PowerShell exited

C Terminal prompt returns

D Output displayed

💡 Hint

Check the 'State' column in row for step 1 in the execution_table.

At which step does the output 'Hello from PowerShell on macOS' appear?

A Step 1

B Step 2

C Step 3

D Never

💡 Hint

Look at the 'Output' column in the execution_table for each step.

If you skip the 'Exit' command, what would be the state after step 3?

A Terminal prompt returns

B PowerShell exited

C PowerShell running

D Output displayed

💡 Hint

Refer to the 'PowerShell Session' variable in variable_tracker after step 3.

Concept Snapshot

PowerShell on macOS:
- Open Terminal and type 'pwsh' to start PowerShell.
- Run PowerShell commands like Write-Output to display text.
- Use 'exit' to leave PowerShell and return to Terminal.
- PowerShell is not default shell; must be installed separately.
- Commands run inside PowerShell prompt within Terminal.

Full Transcript

To use PowerShell on macOS, open the Terminal app. Type 'pwsh' to start PowerShell. This opens a PowerShell prompt inside Terminal. You can run commands like Write-Output to print messages. When done, type 'exit' to leave PowerShell and return to the normal Terminal prompt. If PowerShell is not installed, you must install it first. This process lets you use PowerShell scripts and commands on macOS easily.