Which command is used to zip and unzip all files and subdirectories?

The command used to zip files and directories, including their subdirectories, is indeed "zip." This command is designed to compress files into a single archive file in the ZIP format, which allows for easy storage and transfer. When using the "zip" command, you can specify multiple files and directories to include in the archive, and it will go through and compress all of them, maintaining the directory structure.

Additionally, the "zip" command is versatile and supports compression of entire directory hierarchies with the -r option. This means you can recursively zip all files and subdirectories contained within a specified directory with a single command. For example, the command zip -r archive.zip directory_name/ would create a ZIP archive named "archive.zip" containing all files and folders within "directory_name," preserving their structure.

The other commands listed serve different purposes. "unzip" is used specifically for extracting files from a ZIP archive, "tar" is commonly used for packaging files and directories together (typically not compressing them unless combined with a compression utility), and "gzip" is primarily a compression program that operates on individual files rather than on directories or multiple files. Thus, while each command has its specific utility, "zip"