How to Use the `pop` Command (with examples)

The pop command is a versatile utility that allows users to send emails directly from their terminal. This command is particularly useful for those who prefer using a command-line interface (CLI) over a graphical user interface (GUI) or need to automate sending emails within scripts. With the ability to integrate the contents of Markdown files and attach files seamlessly, pop offers a powerful tool for tech-savvy users seeking streamlined communication over email.

Use Case 1: Launch the Text-based User Interface

Code:

pop

Motivation:
Launching the Text-based User Interface (TUI) of pop serves as a starting point for those who prefer an interactive environment directly in their terminal. The TUI is beneficial for users who are new to the tool and want to explore its features or for those who want to manually compose emails without remembering all the command-line arguments.

Explanation:

• The command pop by itself initiates the text-based interface without any additional arguments. At this point, you are essentially opening an interactive session where you can navigate through the email creation process with the assistance of a user-friendly interface.

Example Output:
Upon execution, the terminal window will display the TUI of pop, guiding the user through various steps such as composing the email body, specifying recipients, and adding attachments, all in a visually organized manner that highlights available options.

Use Case 2: Send an Email Using the Content of a Markdown File as Body

Code:

pop < path/to/message.md --from me@example.com --to you@example.com --subject "On the Subject of Ducks..." --attach path/to/attachment

Motivation:
This use case highlights how pop can automate the email sending process directly from the terminal, utilizing the content of a Markdown file as the email body. This feature is particularly beneficial for those who frequently use Markdown for documentation or notes and wish to share such content via email efficiently. This process also allows users to maintain consistency in formatting and structure when the email is sent.

Explanation:

• pop < path/to/message.md: The redirection operator < directs pop to take input from path/to/message.md. This file contains the Markdown text which will be rendered in the email body.
• --from me@example.com: Specifies the sender’s email address. It informs the recipient who the email is from.
• --to you@example.com: Specifies the recipient’s email address. This indicates where the email should be delivered.
• --subject "On the Subject of Ducks...": Defines the subject line of the email, allowing recipients to understand the email topic immediately.
• --attach path/to/attachment: Signifies that a file should be attached to the email, providing additional information or a resource related to the email’s content.

Example Output:
On execution, the command will send an email to the specified recipient with the Markdown content as the body. The subject will appear as “On the Subject of Ducks…”, and any file specified in the --attach option will be included as an attachment. Success feedback or errors, if any, will be shown in the terminal.

Use Case 3: Display Help

Code:

pop --help

Motivation:
Displaying help information is essential for any CLI tool. It provides users with a comprehensive understanding of the command’s options, arguments, and usage patterns. For new users or those revisiting the tool after some time, the help option can serve as a quick reference to recall command syntax and features.

Explanation:

• --help: This option, when appended to the pop command, triggers the display of help information. This includes a list of available commands, options, and a brief description of what each option does, making it easier for users to familiarize themselves with the tool’s functionality.

Example Output:
The terminal will display a detailed help guide for pop, including usage examples, optional and required arguments, and a short description of each capability. This serves as a self-contained manual for users navigating the tool.

Conclusion:

The pop command provides a robust set of features for sending emails efficiently from the terminal. Its flexibility in handling Markdown files, attachments, and interactive text-based sessions make it a valuable tool for developers and tech enthusiasts who prefer terminal-based workflows. Understanding these use cases helps streamline processes, automate tasks, and leverage Markdown effectively in email communications. The accompanying help option ensures that users can always access guidance when needed.