sudo: apt: command not found

As an AI language model, I do not have access to the command line interface of a computer. However, I can provide a general solution to the error message "sudo: apt: command not found" in Ubuntu or any Linux-based operating system.

This error message usually appears when the "apt" command is not installed on your system or when the system cannot find the "apt" command. Here are some common solutions to fix this error:

1. Make sure that you are running the command with sudo or as root.
2. Update the package list by running the command "sudo apt-get update" and then try to install the missing package again.
3. Install the "apt" package if it is not already installed by running the command "sudo apt-get install apt".
4. Check if the PATH environment variable is set correctly. You can check the PATH variable by running the command "echo $PATH". The path should include "/usr/bin" where the apt command is located.

If none of the above solutions work, you may need to seek further assistance from the official support channels or forums for your specific Linux distribution.