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Mac OS X in a Nutshell by Chris Stone, Chuck Toporek, Jason McIntosh

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Name

zip

Synopsis

zip [options] zipfile [files]

Archives files in InfoZIP format. These files can be retrieved using unzip. The files are compressed as they are added to the archive. Compression ratios of 2:1 to 3:1 are common for text files. zip may also replace files in an existing archive. With no arguments, display the help information. See also unzip.

Default options may be placed in the ZIPOPT environment variable, with the exceptions of -i and -x. Multiple options may be included in ZIPOPT.

zip does not preserve resource forks or metadata when copying files that contain them. zip is installed on Mac OS X as part of Apple’s Developer Tools. There are a number of other important notes in the unzip entry; go there for more information.

Options

-b path

Use path as the location to store the temporary ZIP archive while updating an existing one. When done, copy the temporary archive over the new one. Useful primarily when there is not enough disk space on the filesystem containing the original archive.

-c

Add one-line comments for each file. zip first performs any file operations and then prompts you for a comment describing each file.

-d

Delete entries from a ZIP archive. Filenames to be deleted must be entered in uppercase if the archive was created by PKZIP on an MS-DOS system.

-D

Don’t create entries in the archive for directories. Usually entries are created so that attributes for directories may be restored upon extraction.

-f

Freshen (replace) an existing entry in the ...

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