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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.DOC).
- .!
- .! To build:
- .! $ EDIT /TPU/NOSECTION/NODISPLAY/COMMAND=CVTHELP.TPU UNZIP_CLI.HELP
- .! $ REN UNZIP_CLI.RNH UNZIP.RNH
- .! $ RUNOFF UNZIP.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.
- .!
- <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).
-
- 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 -c, -p, -t, -l, -v or
- -z 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.
- <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
- | /ONE_LINE Filenames only, one per line
- | /VERBOSE Verbose, multi-page format
- | /HEADER Print header lines
- | /TOTALS Print totals for files
- | /TIMES Print file times in sortable decimal format
- | /[NO]PAGE Page screen output through built-in "more"
- <LARETIL>
- <QUALIFIER>
- /BINARY
-
- /BINARY[=KEYWORD]
- /NOBINARY (default)
-
- Selects conversion to VMS "standard" binary file format, which is
- "fixed length 512 byte records, no record attributes".
- The optional keywords recognized are:
- <LITERAL>
- | AUTO Automatically extracts files marked as "binary" (rather than
- | "text") in 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
- /NOCASE_INSENSITIVE (default)
-
- Match filenames case-insensitively. (Good default option under VMS.)
- <QUALIFIER>
- /COMMENT
-
- /COMMENT
- /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
- /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
- /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
- /NOLOWERCASE (default)
-
- Convert filenames from all-uppercase operating systems to lowercase. This
- option has no effect under VMS.
- <QUALIFIER>
- /OVERWRITE
-
- /OVERWRITE
- /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
- /NOPAGE
-
- Feed all screen output through the built-in "more" pager.
- <QUALIFIER>
- /PIPE
-
- /PIPE
-
- Extract files to SYS$OUTPUT with no informational messages.
- <QUALIFIER>
- /QUIET
-
- /QUIET[=SUPER]
-
- Perform operations quietly. The keyword SUPER can be specified to make
- operations even more quiet.
- <QUALIFIER>
- /RESTORE
-
- /RESTORE
- /NORESTORE
-
- Restore file owner and protection settings.
- <QUALIFIER>
- /SCREEN
-
- /SCREEN
- /NOSCREEN
-
- Extracts matching files to SYS$OUTPUT (the terminal).
- <QUALIFIER>
- /TEST
-
- /TEST
- /NOTEST
-
- Test archive files.
- <QUALIFIER>
- /TEXT
-
- /TEXT[=KEYWORD]
- /NOTEXT (default)
-
- Selects conversion to VMS standard text file format.
- The optional keywords recognized are:
- <LITERAL>
- | AUTO Automatically extracts files marked as "text" (rather than
- "binary") in in standard VMS text file format. (default)
- | ALL Extracts all files in standard VMS text file format.
- | NONE Same as /NOTEXT.
- <LARETIL>
-
- A similar functionality is available for binary files, see qualifier /BINARY.
- <QUALIFIER>
- /UPDATE
-
- /UPDATE
- /NOUPDATE
-
- Update existing files; create new ones if needed.
- <QUALIFIER>
- /VERSION
-
- /VERSION
- /NOVERSION (default)
-
- Retain VMS file version numbers.
-
- <TOPIC>
- Authors
-
- Info-ZIP; currently maintained by Greg Roelofs. VMS support maintained
- by Igor Mandrichenko and Hunter Goatley. Originally based on a program
- by Samuel H. Smith.
-
- VMS on-line help ported from UNZIP.DOC by Hunter Goatley.
-
- <TOPIC>
- UNIX_Options
-
- The default action of UnZip is to extract all zipfile entries. The following
- options and modifiers can be provided:
-
- <LITERAL>
- | -Z ZipInfo mode
- | -c extract files to SYS$OUTPUT (terminal)
- | -f freshen existing files (replace if newer); create none
- | -h show brief help screen and exit quietly
- | -l list archive files (short format)
- | -p extract files to SYS$OUTPUT; no informational messages
- | -t test archive files
- | -u update existing files; create new ones if needed
- | -v list archive files (verbose format)
- | -z display only the archive comment
- |
- | MODIFIERS
- | -a auto-extract only text files in standard VMS text file format
- | -aa extract all files as text
- | -b auto-extract only binary files in VMS fixed 512 record file format
- | -bb extract all files as binary in VMS fixed 512 byte record format
- | -j junk paths (don't recreate archive's directory structure)
- | -n never overwrite existing files; don't prompt
- | -o OK to overwrite files without prompting
- | -q perform operations quietly (-qq => even quieter)
- | -C match filenames case-insensitively
- | -L convert filenames to lowercase if created under MS-DOS, VMS, etc.
- | -M page output through built-in "more" function
- | -V retain (VMS) file version numbers
- | -X restore owner/protection info (may require privileges)
- <LARETIL>
-
- Note that uppercase options such as -C, -L, -M, -V, -X and -Z must be specified
- in quotes. For example:
-
- <LITERAL>
- | $ unzip "-VX" -a zipfile
- <LARETIL>
-
- .![this should probably be a separate section]:
- In addition, default options may be specified via the UNZIP_OPTS logical.
- For example, the following will cause UnZip to match filenames without regard
- to case, restore owner/protection information and perform all operations at
- quiet-level 1 by default:
-
- <LITERAL>
- | $ define UNZIP_OPTS "-qCX"
- <LARETIL>
-
- Note that the quotation marks here are required to preserve lowercase options
- (opposite of the command-line behavior). To negate a default option on the
- command line, add one or more minus signs before the option letter, in
- addition to the leading switch character `-':
-
- <LITERAL>
- | $ unzip --ql zipfile
- <LARETIL>
-
- or
-
- <LITERAL>
- | $ unzip -l-q zipfile
- <LARETIL>
-
- At present it is not possible to decrement an option below zero--that is,
- more than a few minuses have no effect.
-
- UNZIP_OPTS may be defined as a symbol rather than a logical, but if both
- are defined, the logical is used.
-