How to Fix "frida-ps: command not found" Error on [macOS]

If you've recently installed Frida tools on your Mac and encountered the following error when running frida-ps -Ua:

-bash: frida-ps: command not found

Don't worry! This common issue occurs because the Frida tools are installed in a local Python directory that's not yet added to your system's PATH. Here's a quick step-by-step guide on how to fix it.

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Step 1: Verify Frida Tools Installation

First, ensure that Frida tools are installed correctly. Run this command in your terminal:

pip3 install frida-tools

If you see output similar to this:

Requirement already satisfied: frida-tools in ./Library/Python/3.9/lib/python/site-packages (13.6.1)

This means Frida tools are already installed.

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Step 2: Locate the Python User Scripts Directory

Next, find out where Python installed the scripts by running:

python3 -m site --user-base

You should see output like this:

/Users/your_username/Library/Python/3.9

The scripts (including frida-ps) are typically stored inside a bin folder under this directory:

/Users/your_username/Library/Python/3.9/bin

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Step 3: Add the Directory to Your PATH

To make sure your system recognizes the frida-ps command, add this directory to your PATH environment variable.

Open your shell configuration file (~/.bash_profile, ~/.zshrc, or ~/.bashrc) and add this line at the end:

export PATH=$PATH:/Users/your_username/Library/Python/3.9/bin

Replace your_username with your actual Mac username.

Save and close the file.

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Step 4: Reload Your Shell Configuration

To apply changes immediately, run:

source ~/.bash_profile  # or ~/.zshrc depending on your shell

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Step 5: Verify That It Worked!

Now run this command again:

frida-ps -Ua

If everything worked correctly, you should now see a list of processes or applications without any errors!

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Screenshots of the Error and Fix

Error Screenshot (Before Fix):

Mac:~ user$ frida-ps -Ua
-bash: frida-ps: command not found

Correct Output (After Fix):

Mac:~ user$ frida-ps -Ua
 PID  Name
----  -------------------------
1234  Safari
5678  Mail
...

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That's it! You've successfully resolved the "frida-ps command not found" error on macOS.