Linux zip Command: Create ZIP Archives

zip bundles and compresses files and directories into a single ZIP archive. It is a format often used when exchanging files with other operating systems.

What is the zip command?

The first argument is the ZIP file to create or update, and the following arguments are the files to include. To include files inside directories, specify -r. When running on an existing ZIP file, it does not necessarily create a new archive from scratch, but can update or add existing entries, so confirm your intended action first.

Basic syntax

zip [options] archive.zip file or directory...

Installed implementations and options may vary depending on the distribution. Check your current system's description with man zip.

Examples

Bundling two files

Choose a new ZIP name that does not already exist.

zip documents.zip report.txt notes.txt

Compressing an entire directory

Include subdirectories and files with -r.

zip -r project.zip project/

Check the created archive

After compression, review the file list with unzip -l.

unzip -l project.zip

Checking what is in a ZIP file

zip can put multiple files into a single ZIP archive. -q performs the addition quietly, and listing is done with a separate command.

printf 'hello\n' > note.txt
zip -q bundle.zip note.txt
unzip -Z -1 bundle.zip

Example output:

note.txt

Just because a name appears in the list doesn't mean the integrity of the archive is verified. You can check the structure with unzip -t bundle.zip. The default encryption of a password-protected ZIP may not be sufficient to protect sensitive information, so if security is the goal, choose an appropriate encryption method separately.

Main Options and Format

Precautions when using

When reusing an existing ZIP file, the configuration content may be updated differently than expected, so either create it with a new name or make a backup first. Do not assume common ZIP password options provide strong security; choose appropriate encryption tools for sensitive data. The ZIP format may not preserve metadata such as permissions and ownership consistently across platforms.

Frequently Asked Questions

Does using `zip project.zip project/` include all the files in the folder?

No. To include the contents of the directory recursively, you usually use `zip -r project.zip project/`.

Official Documentation

You can check the exact behavior of the options and implementation-specific differences in the official documentation for zip.