How to Compress a Directory and Add a Comment in Ubuntu

This guide explains how to compress a directory and attach a descriptive comment to the archive file using the Ubuntu terminal. You will learn the specific commands required to create a zip file while embedding text metadata directly into the archive header. This process helps identify file contents without needing to extract them first.

Prerequisites

Ensure the zip utility is installed on your system. Open your terminal and run the following command to install it if necessary:

sudo apt install zip

Compressing the Directory with a Comment

To compress a folder and add a comment during the process, use the zip command with the -c and -r flags. The -r flag ensures the directory is processed recursively, and the -c flag prompts you to enter a comment.

Execute the following command, replacing archive_name.zip with your desired file name and folder_name with the directory you wish to compress:

zip -c -r archive_name.zip folder_name

After pressing Enter, the terminal will display a prompt saying Enter comment for archive_name.zip:. Type your desired comment and press Enter to finalize the creation of the archive.

Viewing the Archive Comment

You can view the embedded comment without extracting the files by using the unzip command with the -z flag. Run the following command:

unzip -z archive_name.zip

The terminal will display the comment text at the end of the output, allowing you to verify the metadata attached to the compressed directory.