home *** CD-ROM | disk | FTP | other *** search
Text File | 1993-01-23 | 1.9 KB | 58 lines | [TEXT/MPS ] |
- .TH FUNZIP 1 "19 Aug 92 (v1.3)"
- .SH NAME
- funzip \- extract from a ZIP archive file as a filter
- .SH SYNOPSIS
- [...] | \fBfunzip\fP [ password ] | [...]
- .SH ARGUMENTS
- .IP [\fIpassword\fP] \w'[\fIpassword\fP]'u+2m
- Optional password to be used if ZIP archive is encrypted. Decryption
- may not be supported at some sites. See DESCRIPTION for more details.
- .PD
- .SH DESCRIPTION
- .I FUnZip
- acts as a filter; that is, it assumes that a ZIP archive is being piped into
- standard input, and it extracts the first member from the archive to stdout.
- Given the limitation on single-member extraction, \fIFUnZip\fP is most
- useful in conjunction with a secondary archiver program such as tar(1).
- The following section includes an example illustrating this usage in the
- case of disk backups to tape.
- .PD
- .SH EXAMPLES
- To use \fIFUnZip\fP to extract the first member file of the archive test.zip
- and to pipe it into more(1):
- .PP
- .IP "\t\fIfunzip\fP < test.zip | more"
- .PP
- To use \fIFUnZip\fP to test the first member file of test.zip (any errors
- will be reported on standard error):
- .PP
- .IP "\t\fIfunzip\fP < test.zip > /dev/null"
- .PP
- To use \fIZip\fP and \fIFUnZip\fP in place of compress(1) and zcat(1) for
- tape backups:
- .PP
- .IP "\ttar cf \- . | \fIzip\fP \-7 | dd of=/dev/nrst0 obs=8k"
- .IP "\tdd if=/dev/nrst0 ibs=8k | \fIfunzip\fP | tar xf \-"
- .PP
- (where, for example, nrst0 is a SCSI tape drive).
- .PD
- .SH LIMITATIONS
- There is presently no way to extract any member but the first from a ZIP
- archive. This would be useful in the case where a ZIP archive is included
- within another archive.
- .PP
- An alternate mechanism for passing the password to \fIFUnZip\fP would
- be preferable to putting it on the command line.
- .PP
- \fIFUnZip\fP would be useful under OS/2, too.
- .PP
- The functionality of \fIFUnZip\fP should be included in \fIUnZip\fP
- directly (future release).
- .PD
- .SH SEE ALSO
- unzip(1), zip(1), zipcloak(1), zipinfo(1), zipnote(1), zipsplit(1)
- .PD
- .SH AUTHOR
- Mark Adler (Info-ZIP)
- .PD
-