bsdunzip(1) General Commands Manual bsdunzip(1)
NAME
bsdunzip - extract files from a ZIP archive
SYNOPSIS
bsdunzip [-aCcfjLlnopqtuvy] [{ -O | -I } encoding] [-d dir] [-x pattern]
[-P password] zipfile [member ...]
DESCRIPTION
The following options are available:
-a When extracting a text file, convert DOS-style line endings
to Unix-style line endings.
-C Match file names case-insensitively.
-c Extract to stdout/screen. When extracting files from the
zipfile, they are written to stdout. This is similar to -p,
but does not suppress normal output.
-d dir Extract files into the specified directory rather than the
current directory.
-f Update existing. Extract only files from the zipfile if a
file with the same name already exists on disk and is older
than the former. Otherwise, the file is silently skipped.
-I encoding
-O encoding
Convert filenames from the specified encoding.
-j Ignore directories stored in the zipfile; instead, extract
all files directly into the extraction directory.
-L Convert the names of the extracted files and directories to
lowercase.
-l List, rather than extract, the contents of the zipfile.
-n No overwrite. When extracting a file from the zipfile, if a
file with the same name already exists on disk, the file is
silently skipped.
-o Overwrite. When extracting a file from the zipfile, if a
file with the same name already exists on disk, the existing
file is replaced with the file from the zipfile.
-p Extract to stdout. When extracting files from the zipfile,
they are written to stdout. The normal output is suppressed
as if -q was specified.
-P password
Extract encrypted files using a password. Putting a password
on the command line using this option can be insecure.
-q Quiet: print less information while extracting.
-t Test: do not extract anything, but verify the checksum of
every file in the archive.
-u Update. When extracting a file from the zipfile, if a file
with the same name already exists on disk, the existing file
is replaced with the file from the zipfile if and only if the
latter is newer than the former. Otherwise, the file is
silently skipped.
-v List verbosely, rather than extract, the contents of the
zipfile. This differs from -l by using the long listing.
Note that most of the data is currently fake and does not
reflect the content of the archive.
-x pattern Exclude files matching the pattern pattern.
-y Print four digit years in listings instead of two.
-Z mode Emulate zipinfo(1L) mode. Enabling zipinfo(1L) mode changes
the way in which additional arguments are parsed. Currently
only zipinfo(1L) mode 1 is supported, which lists the file
names one per line.
[member ...]
Optional list of members to extract from the zipfile. Can
include patterns, e.g., 'memberdir/*' will extract all files
and dirs below memberdir.
Note that only one of -n, -o, and -u may be specified. If specified
filename is "-", then data is read from stdin.
ENVIRONMENT
If the UNZIP_DEBUG environment variable is defined, the -q command-line
option has no effect, and additional debugging information will be
printed to stderr.
COMPATIBILITY
The bsdunzip utility aims to be sufficiently compatible with other
implementations to serve as a drop-in replacement in the context of the
ports(7) system. No attempt has been made to replicate functionality
which is not required for that purpose.
For compatibility reasons, command-line options will be recognized if
they are listed not only before but also after the name of the zipfile.
Normally, the -a option should only affect files which are marked as text
files in the zipfile's central directory. Since the archive(3) library
does not provide access to that information, it is not available to the
bsdunzip utility. Instead, the bsdunzip utility will assume that a file
is a text file if no non-ASCII characters are present within the first
block of data decompressed for that file. If non-ASCII characters appear
in subsequent blocks of data, a warning will be issued.
The bsdunzip utility is only able to process ZIP archives handled by
libarchive(3). Depending on the installed version of libarchive(3), this
may or may not include self-extracting or ZIPX archives.
SEE ALSO
libarchive(3)
HISTORY
The bsdunzip utility appeared in FreeBSD 8.0.
AUTHORS
The bsdunzip utility and this manual page were written by Dag-Erling
Smorgrav <des@FreeBSD.org>. It uses the archive(3) library developed by
Tim Kientzle <kientzle@FreeBSD.org>.
CAVEATS
The bsdunzip utility performs two scans of the command-line for arguments
before and after the archive name, so as to maintain compatibility with
Info-ZIP unzip. As a result, the POSIX `--' double-dash string used to
separate options from arguments will need to be repeated. For example,
to extract a "-a.jpg" from "-b.zip" with overwrite, one would need to
invoke
bsdunzip -o -- -a.jpg -- -b.zip
macOS 13.5 June 27, 2023 macOS 13.5
libarchive 3.7.1 - Generated Thu Aug 17 15:52:11 CDT 2023