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ZGREP.TXT
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1993-01-08
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ZGREP version 3.0
by
Douglas E. MacLean
2200 Ocean Ave. Apt 6B
Brooklyn, New York 11229
How many times did you ever want to search through a directory full
of ZIP files but you couldn't exactly remember the name of the file you
wanted? With ZGrep you can bring the power of Unix style regular
expressions to assist in your search. Or perhaps you would like to
only unzip a series of files with certain characters in the name.
ZGrep is just the utility to use.
Regular expressions are search patterns were certain special character
are expanded to limit and guide the search. ZGrep uses these regular
expressions to search ZIP and self extracting EXE files for exactly the
files you want. The zip program is limited to the use of DOS wildcards
to perform its operations. Now with ZGrep you can expand the
usefulness of this powerful tool.
The use of Zgrep is very easy. People familiar with the uniz grep
program will be abile to use it right away. The command line is as
follows.
zgrep <-flags> regexp<,regexp...>|#refile <zipfile{.zip|.exe}|@filelist
Where flags are the various options to produce different style
listings, regexp are the regular expression and filelist is the list of
files to search. Multiple regular expressions are separated by a
comma.
The options are:
usage:zgrep [-<lzfinv021hau:path] regexp|#refile <zipfile[.zip|.exe]|@listfile...>
-l: full listing
-z: list only zip file name
-f: list only file name
-i: list only files/zips that do not match
-v: verbose mode: show stats
-0: check for version 0.92 exe files
-1: check for version 1.02 exe files
-2: check for version 1.10 exe files
-h: help with regular expressions
-n: the name of zip and matching files
-u<path> unzip files to path, use '.' for current dir
-a: ask before unzipping file
@listfile may be used to specify a list of files to search
#refile may contain a list of regular expressions to use
zgrep returns an errorlevel of 0 if files are found
and 1 if no files are located
-l full listing
This option provides the full path of the zip file where the match
occurred. The time, date and size of the original files are also
displayed. This is the default mode.
-z zip files only
This options only displays the name of the zip files that contain
matches for the regular expression.
-f files only
This will list the names of the files that match. On information about
which zip file are displayed.
-i inverse match
This will invert the selection displaying only those files that don't
match the regular expression.
-n name list mode
This will provide the name of the zip file and the file that matches
the selection criteria.
-v verbose mode
This will display additional information such as the date, time and
size of the matching files.
-0 PKZ092 mode (self extraction)
This options permits ZGrep to work on self extracting exe files created
by PKZip versions prior to the 1.0x versions.
Self extracting exe files from versions 1.10 is the default setting.
-1 PKZ102 mode (self extraction)
This options permits ZGrep to work on self extracting exe files created
by PKZip versions 1.01 and 1.02
-2 PKZ110 mode (self extraction)
This options permits ZGrep to work on self extracting exe files created
by PKZip versions 1.10
Self extracting exe files from versions 2.0c is the default setting.
-h help display
This will display a chart of the options for ZGrep.
-u<path> unzip located files
This will unzip the located files to the specified path. The path
should appear directly after the u and may include a drive.
zgrep -ud:\work ^[A-D] *.*
Will unzip all files that begin with the letter A through D to the D
drives work directory.
-a ask first
This option will prompt you for a 'y' or 'n' to determine if the
displayed file show be unzipped.
With version 2.0 you can now specify the files to search in a file.
The file must be proceeded by the character '@' such as:
zgrep ^[A-D],TXT$ @filelist
You can use any combination of wildcards, filelists and filenames to
designate the search list:
zgrep ^[A-D],TXT$ zippy.zip @filelist a:programs
Notice that if the extent zip is not specified it is assumed.
With version 2.1 there is also the ability to obtain the regular expressions
from a file. The file must be preceeded by the character '#':
zgrep #express.lst @files
The expression file and search file should have one entry per line. There
may be mulitple search files but only one expression file.
With version 3.0 errorlevel accessible return codes may be used in
batch files. If a file is found the errorlevel is set to 0. If no
files are located, a 1 is returned.
You can select your own defaults by setting the DOS environment variable ZGREP.
For example,
set ZGREP=nv
Will default to a verbose listing of zip and file names.
You can also use zgrep to extract files from different zip files:
zgrep -u. EXE$,DOC$ a:v9n04.zip d:\zipfiles\list73a.zip
This command will extract to the current directory all *.DOC and *.EXE files
from the listed zip files.
History
*
* Rev 3.0 08 Jan 1993 16:19:24 Doug MacLean
* Added return of errorlevel on exit
* Updated for PKZip v2.0c Self-Extracting EXE files
*
* Rev 2.3 02 Jul 1991 12:46:56 DEM
* Rearranged code to increase speed
* Moved code from main function to increase optimization
*
* Rev 2.2 19 May 1990 12:05:26 DEM
* Modified for MSC v6.0 usage
*
* Rev 2.1 17 Mar 1990 17:44:15 DEM
* Added ability to obtain regular expressions from a file.
*
* Rev 2.0 16 Mar 1990 20:23:00 DEM
* Added ability to use a list file to designate search files.
* Corrected error encounted when file specified does not exist
* Thanks to John McNamara or Mac's Place BBS (919) 891-1111
* who sugested the filelist idea.
*
* Rev 1.6 14 Mar 1990 09:38:00 DEM
* The filename extent now defulats to ZIP if none is provided.
* You can use a command like
* zgrep ^ZGREP a:programs
* to refer to a:programs.zip
*
* Rev 1.5 23 Mar 1990 10:04:32 DEM
* Added code to support PKZ110 new EXE format.
*
* Rev 1.4 01 Mar 1990 15:47:16 DEM
* Removed code that can be supplied from personal library
* Removed redundant external prototyping
* Added version number in usage display
*
* Rev 1.3 02 Feb 1990 17:18:24 DEM
* Corrected code to permit multiple option flags
* Added environmental defaults
* First offical public release
*
* Rev 1.2 02 Feb 1990 13:29:50 DEM
* Added code to unzip located files to given path
* Added call to getopt()
*
* Rev 1.1 31 Jan 1990 22:32:52 DEM
* Added online help for regular expressions
*
* Rev 1.0 31 Jan 1990 16:20:10 DEM
* Initial revision.
*/
If you find this program useful, please register. The cost is $15.
This includes full support, the next release and a sampler pack of
other Unix4DOS programs that I am sure you will find useful.
The author may be contacted via the following RIME conferences:
'C' Programming
Object Oriented Programming
ASM Programming
Brief Editor Support
Biology Conference
IDC (TCXL) Support
Systems Design
Boyan Support
Cancer Support
"I host all of the above!"
Thanks in advance for your support.