unzip_cli.help

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.!
.!  File:       UNZIP_CLI.HELP
.!
.!  Author:     Hunter Goatley
.!
.!  Date:       12 Jul 94 (orig. UNZIP.RNH, 23 Oct 91)
.!
.!  Description:
.!
.!      TPU-processable source file to produce VMS on-line help for
.!      portable UnZip.  Adapted from UNZIP.RNH, originally based on
.!      UNZIP.MAN (now UNZIP.TXT).
.!
.!      To build:
.!          $ EDIT /TPU/NOSECTION/NODISPLAY/COMMAND=CVTHELP.TPU UNZIP_CLI.HELP
.!          $ RUNOFF /OUT=UNZIP.HLP UNZIP_CLI.RNH
.!          $ LIBR /HELP/INSERT libr UNZIP
.!
.!  Modification history:
.!
.!      02-001          Hunter Goatley          12-JUL-1994 16:59
.!              Genesis.
.!      02-002          Cave Newt               14-JUL-1994 11:36
.!              Fixed /*TEXT options and added/removed various options.
.!      02-003          Cave Newt               28-JUL-1994 08:54
.!              Removed semicolons from comments and moved /ZIPINFO.
.!      02-004          Christian Spieler       06-OCT-1995 02:02
.!              Changed to conform to revised .CLD definition.
.!      02-005          Christian Spieler       06-FEB-1996 02:20
.!              Added description of /HELP qualifier.
.!      02-006          Christian Spieler       12-MAY-1996 00:50
.!              Some clarifications/cleanups.
.!      02-007          Christian Spieler       04-MAR-1997 22:25
.!              Added /[NO]CASE_INSENSITIVE to ZipInfo mode;
.!              documented the new /PASSWORD="decryption_key" option.
.!      02-007          Christian Spieler       22-JUL-1997 22:37
.!              Formatting changes (prevent line wraps); added "Exit_Codes"
.!              subtopic (no version number change).
.!      02-007          Christian Spieler       28-APR-2000 03:22
.!              Changed references to plaintext UnZip documentation file
.!              into UNZIP.TXT (no version number change).
.!      02-007          Hunter Goatley          07-Feb-2001 15:43
.!              Reformatted qualifier item headers to show negated form of
.!              option qualifier on separate line (no version number change).
.!      02-008          Christian Spieler       18-Apr-2001 22:29
.!              Added description for extended functionality of -b option.
.!      02-009          Christian Spieler       10-Dec-2001 13:37
.!              Added description for new /TRAVERSE_DIRS option.
.!      02-010          Steven Schweda          28-Jan-2005 16:16:36
.!              Added /TIMESTAMP (-T) qualifier.
.!      02-010          Christian Spieler       29-Jan-2005 01:50
.!              Completed description of -T qualifier (also for UNIX style).
.!
<INIT>
<MAIN>
UNZIP

UnZip is used to extract files compressed and packaged by Zip (see HELP ZIP
for information on ZIP).

For a brief help on Zip and Unzip, run each without specifying any
parameters on the command line (or apply the /HELP qualifier).
To get a brief help sceen about the alternate UNIX style command interface,
run each with the -h option applied.

UNZIP will list, test, or extract from a ZIP archive.  ZIP archives are commonly
found on MS-DOS systems; a VMS version of ZIP can also be found here.

Archive member extraction is implied by the absence of the /SCREEN (-c),
/PIPE (-p), /TEST (-t), /TIMESTAMP (-T), /LIST (-l, -v) or /COMMENT (-z)
qualifiers (options).
All archive members are processed unless a filespec is provided to
specify a subset of the archive members.
<FORMAT>
UNZIP zipfile [file[,...]] [/qualifiers]

.!
<TOPIC>
Parameters

<PARAMETER>
zipfile

<PTEXT>
File specification for the ZIP archive(s) with optional wildcards. UnZip will
perform actions specified for every zipfile matching the specification.
The default file specification is SYS$DISK:[].ZIP.

Note that self-extracting ZIP files are supported; just specify the .EXE
suffix yourself.
<TXETP>

<PARAMETER>
file

<PTEXT>
An optional comma-separated list of archive members to be processed;
if no list is given, all archive members are processed.  Expressions
may be used to match multiple members.  Expressions should be enclosed
in double-quotes to prevent interpretation by DCL.  Multiple filenames
should be separated by blanks.  Each file specification is similar to
a Unix egrep expression and may contain:

<LITERAL>
|*       matches a sequence of 0 or more characters
|?       matches exactly 1 character
|[...]   matches any single character found inside the brackets;
|        ranges are specified by a beginning character, a hyphen,
|        and an ending character.  If a '!' or '^' immediately
|        follows the left bracket, then any character not in the
|        given range is matched.
|        Hint: To specify a verbatim left bracket '[', the
|              three-character sequence "[[]" has to be used.
<LARETIL>
<TXETP>

<QUALIFIERS>
<QUALIFIER>
/ZIPINFO

/ZIPINFO

Displays information about the Zip archive and the files contained therein.
This function used to be provided by a separate ZipInfo program.

The following qualifiers may be specified with /ZIPINFO:

<LITERAL>
|  /SHORT                 Short UNIX "ls -l" format (default)
|  /MEDIUM                Medium UNIX "ls -l" format
|  /LONG                  Long UNIX "ls -l" format
|  /VERBOSE               Verbose, multi-page format
|  /ONE_LINE              Filenames only, one per line
|  /HEADER                Print header lines
|  /TOTALS                Print totals for files
|  /TIMES                 Print file times in sortable decimal format
|  /[NO]CASE_INSENSITIVE  Match filenames case-insensitively
|  /[NO]PAGE              Page screen output through built-in "more"
<LARETIL>
<QUALIFIER>
/BINARY

/BINARY[=KEYWORD]
<NEXT>
/NOBINARY (default)

Selects conversion to VMS "standard" binary file format for
extracted files, which is "fixed length 512 byte records,
no record attributes". When extracting to SYS$OUTPUT (/SCREEN
or /PIPE qualifier), this qualifier deactivates the default
"text data" conversion, instead.
The optional keywords recognized are:
<LITERAL>
|  AUTO     Automatically extracts files marked as "binary" (rather
|           than "text") in standard VMS binary file format. (default)
|  ALL      Extracts all files in standard VMS binary file format.
|  NONE     Same as /NOBINARY.
<LARETIL>

Note that a combination of /BINARY[=AUTO] and /TEXT[=AUTO] is allowed.
(see /TEXT qualifier)
<QUALIFIER>
/BRIEF

/BRIEF (default)

When used with /LIST, specifies that a brief listing of the archive's
contents is to be displayed.  A brief listing shows the length, date,
time, and file name for the files in the archive.
<QUALIFIER>
/CASE_INSENSITIVE

/CASE_INSENSITIVE
<NEXT>
/NOCASE_INSENSITIVE (default)

Match filenames case-insensitively.  (Good default option under VMS.)
<QUALIFIER>
/COMMENT

/COMMENT
<NEXT>
/NOCOMMENT

Display the archive comment.
<QUALIFIER>
/DIRECTORY

/DIRECTORY=directory-spec

Specifies the output directory where all the extracted files are to be
placed.
<QUALIFIER>
/EXCLUDE

/EXCLUDE=(file[,...])

A comma-separated list of files to exclude when extracting files.
If multiple files are specified, the list should be included in
parentheses.

<QUALIFIER>
/FRESHEN

/FRESHEN
<NEXT>
/NOFRESHEN

Freshen existing files; replace if newer.  Does not cause any new files to
be created.
<QUALIFIER>
/FULL

/FULL

When used with /LIST, specifies that a full listing of the archive's
contents is to be displayed.  A full listing shows the length,
compression method, compressed size, compression ratio, date,
time, CRC value, and file name for the files in the archive.
<QUALIFIER>
/HELP

/HELP

Displays a one-page brief help screen and exits quietly.
<QUALIFIER>
/JUNK

/JUNK
<NEXT>
/NOJUNK (default)

Junk the stored paths (don't recreated the archive's directory
structure.
<QUALIFIER>
/LIST

/LIST

List the contents of the archive.  /BRIEF and /FULL can be used to
specify the amount of information displayed.  The default is /BRIEF.
<QUALIFIER>
/LOWERCASE

/LOWERCASE
<NEXT>
/NOLOWERCASE (default)

Convert filenames from all-uppercase operating systems to lowercase.  This
option has no effect under VMS.
<QUALIFIER>
/OVERWRITE

/OVERWRITE
<NEXT>
/NOOVERWRITE

The qualifier /OVERWRITE forces overwriting of existing files when extracting.
The negation /NOOVERWRITE results in never overwriting an existing file.
The default action is to prompt for desired action when about to
overwrite an existing file.

For VMS, "overwriting" results in the creation of a new version of the file,
unless version numbers are stored in the archive and /VERSION is specified.
<QUALIFIER>
/PAGE

/PAGE
<NEXT>
/NOPAGE

Feed all screen output through the built-in "more" pager.
<QUALIFIER>
/PASSWORD