Mac OS X Panther for Unix Geeks

Description

Lists or extracts files from a ZIP archive (such as one created by the zip command). If the name of the archive file ends in .zip , that extension need not be specified in archive_filename . If pathname arguments are given, only archive items matching those arguments are processed ; otherwise , unzip lists or extracts all items in the archive. When called with no arguments, it prints a usage statement to standard output.

Options/Usage

-a

Converts text files in the archive to native format. For instance, this option translates DOS linefeeds to Unix linefeeds on Mac OS X. When doubled ( -aa ), it attempts to convert all files, whether text or binary.

-b

Treats all files as binary, so that no text conversions are attempted.

-c

Extracts file data to standard output.

-C

Uses case-insensitive matching of pathname arguments to archive items.

-d

Extracts files into the given directory. Otherwise, files are extracted into the current working directory.

-f

Extracts files only if they already exist, and if the modification timestamps in the archive are more recent than those on disk.

-j

Discards the paths of archived files, so that all files are extracted into the same directory.

-l

Lists archive contents, along with sizes, modification timestamps, and comments. More information is printed if - v is also used.

-L

Converts filenames to lowercase if they were archived from a single-case filesystem (such as FAT). When doubled ( -LL ), all filenames are converted to lowercase.

-M

Displays output a page at a time.

-n

Never overwrites existing files when extracting. By default, unzip prompts the user if an existing file would be overwritten.

-o

Overwrites existing files when extracting, without prompting.

-p

As - c , except that text conversions are not allowed.

-q

Minimizes output. When doubled ( -qq ), produces even less output.

-t

Performs a CRC check on archive items to determine if they have changed since being archived.

-u

As - f , but also extracts files that don't already exist on the disk.

-v

Enables verbose output. If it's the only argument, prints version information, compile settings, and environment variable settings to standard output.

-V

For items archived on a VMS system, this argument retains file version numbers in filenames.

-x

Excludes the files specified by the additional pathname arguments, which usually include wildcards to match filenames of a certain pattern.

-X

Restores owner and group information for extracted files. Successful use of this flag will most likely require superuser privileges.

-z

Prints comments stored in the archive file to standard output.

-Z

Provides more control over information displayed to standard output about archive contents. When invoked as the only argument, prints usage information for the following options to standard output.

-h

Prints archive name, size, and number of archived items.

-l

As - s , but compressed size is also displayed.

-m

As - s , but compression ratio is also displayed.

-M

Displays output a page at a time.

-s

Prints information about each item in the archive: permissions, version of zip used to create the archive, uncompressed size, file type, compression method, modification timestamp, and name. This is the default behavior if no other options are specified.

-t

Prints number of archived items, cumulative compressed and uncompressed sizes, and compression ratio.

-T

Prints timestamps in a sortable format, rather than the default human-readable format.

-v

Enables verbose output.

-x

Excludes the files specified by the additional pathname arguments, which usually include wildcards to match filenames of a certain pattern.

-z

Prints comments stored in the archive file.

-1

Prints only filenames of archived items.

-2

As - 1 , but - h , -t , and - z flags may be used to print additional information.

Location

/usr/bin