Gil,
I have not tried to decompress a file created using terse on PC. But on OS/2
Days terse was used to send dump's to IBM. I did a quick -h on terse and found
the following... Let me do a test of PDS and let you know.
I:\tersepc>terse -h
+-----------------------------------------------------------------------------+
| TERSE 2.1d (Windows) Michael Nagy, MNAGY @ SPPVM1 |
| Cross-Platform Compression Utility Copyright (C) Advantis, 1994 |
+-----------------------------------------------------------------------------+
| |
| Usage: TERSE sourcefile {targetfile} {switches} |
| |
| Some of the more important switches which you may specify are: |
| |
| -b .... binary ........ binary mode (text mode is default) |
| -h .... help .......... display extended help documentation |
| -s .... statistics .... display statistical information |
| -f .... fixed ......... fixed-length records |
| -e .... ebcdic ........ host ebcdic code page |
| -a .... ascii ......... pc ascii code page |
| -l .... language ...... country code for codepage pair |
| |
| The target file is assumed to be the same as the source file unless another |
| target file is explicitly specified. The appropriate function (compression |
| or decompression) will be selected automatically. The autoselection logic |
| can also be disabled if necessary. Read the "-h" extended help information |
| to learn how. Extended help also discusses file transfer procedures which |
| you must follow to successfully exchange compressed files with the host. |
| |
+-----------------------------------------------------------------------------+
| |
| TERSE is a PC implementation of the host data compression algorithm used by |
| the host "TERSE" program when the "(SPACK" option is specified. It allows |
| data to be compressed under either VM or MVS, sent to the PC in compressed |
| form, and then decompressed on the PC. It also allows you to compress data |
| on the PC, send it to the host in compressed form, and decompress it under |
| either VM or MVS. TERSE can also decompress files compressed by the host |
| "TERSE" program when the "(PACK" option is specified, but TERSE will not |
| create such files. |
| |
| When uploading compressed files from the PC to the host, make sure to set |
| up your file transfer program to do a binary transfer using 1024 byte fixed |
| length records. When downloading compressed files to the PC from the host |
| it is sufficient to do a simple binary transfer. Never allow the transfer |
| program to do any type of EBCDIC/ASCII or CRLF conversions! |
| |
| The following switches may be specified to override the autoselection logic |
| which normally determines if a file should be compressed or decompressed by |
| examining the special tersed file header: |
| |
| -c .... compress ...... compress the source file |
| -d .... decompress .... decompress the source file |
| |
| Under rare circumstances the autoselection logic may think an uncompressed |
| file has already been compressed and try to decompress it. In this case it |
| would be necessary to specify the "-c" switch to force compression. In the |
| same fashion, the "-d" switch can force decompression for files which are |
| incorrectly considered by the autoselection logic to be compressed. |
| |
| The following switch is provided to assist in situations when unexpected or |
| inexplicable results occur: |
| |
| -x .... examine ....... display tersed file header data |
| |
| The "-x" switch will cause the autoselection logic to display the contents |
| of the terse file header without actually doing any data conversion. |
| |
| To convert a file "in place" (without creating an output file with another |
| file name) just omit the target filename, or specify the same filename for |
| both the source and target files. In either case the new file will replace |
| the original. |
| |
| When running the TERSE program from a batch file or other environment where |
| extraneous output is undesired, you can specify the "-q" switch: |
| |
| -q .... quiet ......... suppress all boilerplate text |
| |
| The "-q" switch will be ignored if the "-s" switch has also been specified. |
| |
| When compressing files in host-compatible mode, a 256 byte variable-length |
| record format is assumed. To use fixed-length record sizes instead specify |
| the "-f" switch, followed by the desired fixed record length: |
| |
| -f80 .. fixed ......... 80 byte fixed-length (for example) |
| |
| Fixed-length record sizes can range from 1 to 65535 bytes. |
| |
| The host compatibility involves several complications to the primary job of |
| compressing and decompressing data files. To turn off these extensions use |
| the following switch: |
| |
| -n .... native ........ universal native binary mode |
| |
| Files compressed with the "-n" switch will be slightly smaller than those |
| processed in host compatible mode. Processing will also be a bit quicker. |
| When "-n" is specified the "-b" (binary) switch is ignored. |
| |
| ** Host compatibility is lost when the "-n" switch is used! ** |
| |
| The default ASCII/EBCDIC character translation tables are the same tables |
| used in several popular software packages, including ALMCOPY. These tables |
| perform a nonstandard translation, however, which doesn't correspond to any |
| of the standard EBCDIC and ASCII codepages. If you need a more standard |
| translation, override these default tables either by explicitly specifying |
| a specific EBCDIC or ASCII codepage, or by specifying a language codepage |
| pair directly with the "-l" (language) switch. |
| |
| When the default translation tables are disabled, then the ASCII and EBCDIC |
| codepages commonly used in the United States, specifically EBCDIC codepage |
| 37 and ASCII codepage 437, are assumed unless individually or jointly over- |
| ridden by the "-e" (ebcdic), "-a" (ascii), or "-l" (language) switches. |
| You can use the "-e" and "-a" switches to change either or both of these |
| defaults individually as shown below: |
| |
| -e37 ... ebcdic ....... host ebcdic code page |
| -a437 .. ascii ....... pc ascii code page |
| |
| The following EBCDIC code pages are supported: |
| |
| 37, 273, 277, 278, 280, 284, 285, 290, 297, 420, 424, |
| 500, 833, 836, 838, 870, 871, 875, 918, 1025, 1026, 1027 |
| |
| The following ASCII code pages are supported: |
| |
| 437, 850, 852, 855, 857, 862, 864, 866, 868, 869, 874, |
| 1040, 1041, 1042, 1043 |
| |
| The following EBCDIC/ASCII codepage pairs are typically used in the |
| specified countries. You can use the associated "Code" value with the "-l" |
| (language) switch to select these codepage pairs directly: |
| |
| Country Code EBCDIC ASCII |
| ---------------------------------- |
| Albania..........AL....0870...0852 |
| Arabic...........AR....0420...0864 |
| Australia........US....0037...0437 |
| Austria..........GE....0273...0850 |
| Belgium..........BE....0500...0850 |
| Brazil...........BR....0037...0850 |
| Bulgaria.........BU....1025...0855 |
| Canada...........CA....0037...0850 |
| China............CH....0836...1042 |
| Czechoslovakia...CZ....0870...0852 |
| Denmark..........DE....0277...0850 |
| Finland..........FI....0278...0850 |
| France...........FR....0297...0850 |
| Germany..........GE....0273...0850 |
| Greece...........GR....0875...0869 |
| Hungary..........HU....0870...0852 |
| Iceland..........IC....0871...0850 |
| Ireland..........IR....0285...0850 |
| Israel...........IS....0424...0862 |
| Italy............IT....0280...0850 |
| Japan............JA....1027...1041 |
| Korea............KO....0833...1040 |
| Netherlands......NE....0037...0850 |
| New Zealand......NZ....0037...0437 |
| Norway...........NO....0277...0850 |
| Pakistan.........PA....0918...0868 |
| Poland...........PL....0870...0852 |
| Portugal.........PR....0037...0850 |
| Romania..........RO....0870...0852 |
| Russia...........RU....1025...0866 |
| South Africa.....SA....0037...0437 |
| Spain............SP....0284...0850 |
| Sweden...........SE....0278...0850 |
| Switzerland......SI....0500...0850 |
| Taiwan...........TA....0037...1043 |
| Thailand.........TH....0838...0874 |
| Turkey...........TU....1026...0857 |
| United Kingdom...UK....0285...0850 |
| United States....US....0037...0437 |
| Yugoslavia.......YU....0870...0852 |
| |
+-----------------------------------------------------------------------------+
| |
| A few examples may serve to make all this clear. The defaults have been |
| selected so you do not need to specify any switches to exchange compressed |
| text files with the host. |
| |
| To compress a text file before uploading it to the host, or to decompress a |
| text file after downloading it from the host, with the default EBCDIC/ASCII |
| codepage translations, use: |
| |
| TERSE filename |
| |
| To compress a text file before uploading it to the host, or to decompress a |
| text file after downloading it from the host, with the appropriate codepage |
| translations for Spain (EBCDIC codepage 284 and ASCII codepage 850), use: |
| |
| TERSE filename -lsp |
| |
| TERSE automatically selects compression or decompression as needed, and by |
| default performs ASCII/CRLF to or from EBCDIC format conversion. When such |
| conversions are inappropriate use the "-b" (binary) switch to disable them: |
| |
| TERSE filename -b |
| |
+-----------------------------------------------------------------------------+
>>> On 3/18/2010 at 11:57 AM, in message
>>> <listserv%201003181357189930.0...@bama.ua.edu>, Paul Gilmartin
>>> <paulgboul...@aim.com> wrote:
On Thu, 18 Mar 2010 11:20:38 -0700, Natarajan Mohan wrote:
>
>You would have to login to yahoo groups for hercules-390 @
>http://groups.yahoo.com/group/hercules-390 and go to files. You will find
>terse.zip file containing executables for windows/dos/mac/linux etc.
>
Both terse and unterse?
Ummm. Doesn't terse reflect a lot of information from the DSCB?
How does that play on a non-z?OS platform?
For that matter, can terse be used for interchange between
z/OS and z/VM? PDS[E] <--> SFS directory?
-- gil
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