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-
- UPDATE.DOC, ARJ 2.50a October 1995
-
-
- This documents new or updated information since ARJ 2.41.
-
-
- ** IMPORTANT NEWS ****************************************************
-
- THIS VERSION OF ARJ IS AN OFFICIAL RELEASE.
-
- The mailing address of ARJ Software has changed as of August 1993.
-
- ARJ Software
- Robert and Susan Jung
- P.O. Box 249
- Norwood MA 02062
- USA
-
- FAX: 617-769-4893
-
- There is ARJ Internet mailing list and WEB site support
- information added to the file ARJ.DOC.
-
- Beginning with this version of ARJ, full functionality of certain
- ARJ software features will NOT be available in the shareware
- versions of ARJ (registered or not). These features include the
- multiple volume self-extractor, the ARJSFX embedded command line
- feature, and the inhibit display messages option. The full
- featured versions will ONLY be available from ARJ Software and
- its agents. Registered ARJ users can upgrade to this version for
- a small shipping/handling fee ($5). For credit card users, the
- upgrade fee will be $10 because of minimum fee charge
- requirements.
-
- See ARJDISP.DOC for information about a new feature for software
- distributors using ARJ.
-
- Check the WHATSNEW.DOC file for changes since ARJ 2.41a.
-
- The new multiple volume self-extraction function is LIMITED in the
- ARJ shareware version. Only volumes of 360K or less in size can be
- created AND only such volumes will be processed by the
- self-extractor. This feature is accessed through the "-je" option
- along with the "-v" option.
-
- The ARJ Security envelope scheme in 2.50a is the SAME as in 2.41.
- In other words, ARJ-SECURE 2.50a is compatible with 2.41. There is
- no change in the envelope key files. However, the 2.50a version
- of this ARJ-SECURE is able to make an archive and "seal" it with
- the same command line. ARJ-SECURE users can upgrade to this
- version for a small shipping/handling fee ($5).
-
- ARJ can archive up to 32,000 files at one time when the new "-hm"
- option is specified. This option enables ARJ to use disk space
- instead of memory space to manage the names of the files being
- archived.
-
- Please note that older versions of ARJ.EXE will NOT process the
- new multiple volume self-extractor. An error message will be
- displayed.
-
- A new option "-w" sets the ARJSFX module to skip the "Continue
- extraction?" message. This is a change from the former method to
- inhibit the message.
-
- The extraction messages of the large ARJSFX module have been
- shortened in default mode. A new "-k" option will display the
- long form of the messages.
-
- It is now possible for registered ARJ users to control whether
- the ARJSFX module will display the overwrite, create directory,
- and continue extraction prompts without requiring command line
- options. It is also possible to control the ARJSFXJR overwrite
- behavior.
-
- A diskette change test will detect the failure to swap diskettes.
- This can cause a problem for those who put more than one volume
- per diskette. However, this diskette change test is limited to
- three retries, so ARJ will eventually accept the non-change of
- diskette. The user can inhibit this change test with the new
- "-vi" option.
-
- Whenever archiving to diskettes, it is HIGHLY recommended that the
- option "-jt" be used. This helps spot BAD diskettes or BAD
- diskette drives. It is HIGHLY recommended that the "-jt" option
- be used in a Windows or multi-tasking or network environment.
-
- UNERASE or UNDELETE commands do not always recover a file
- correctly. This will result in damaged archives. This is true
- for all archive types. You should always test an archive after
- unerasing it.
-
- If you use the software disk cache, HYPERDISK, see the KNOWN ARJ
- ISSUES section in ARJ.DOC for important information.
-
- CAUTION: To those who use the -t1 and/or -t1g options to save a few
- extra bytes. This option should only be used on TEXT FILES. Those
- are files created by EDLIN, EDIT, QEDIT, BRIEF, NOTEPAD, and
- others. Text files typically contain only letters, numbers,
- spaces, and punctuation marks. WORD PROCESSOR format files ARE NOT
- TEXT FILES! MS WORD, Wordperfect, AMIPRO, WRITE, and similar files
- ARE NOT TEXT FILES. Using the -t1 or -t1g on any other kind of file
- probably will result in DATA LOSS!
-
- **********************************************************************
-
-
- USER PROMPTS
-
- The ARJ user prompts have been improved to provide more
- flexibility. In addition to the normal yes and no responses, ARJ
- also accepts the following responses: quit, always, skip, global,
- and command.
-
- "Global" sets ARJ to inhibit all subsequent user prompts by assuming
- YES for all queries as if "-y" were specified.
-
- The "Always" response has changed. It now sets ARJ to assume YES
- for subsequent queries of the same class. For example, answering
- YES to the overwrite query will assume YES for ALL subsequent
- overwrite queries.
-
- "Skip" sets ARJ to assume NO for ALL subsequent queries of the same
- class.
-
- Subsequent user prompt messages will still be output to the screen
- after the "always" and "skip" responses but no user response will be
- accepted.
-
- "Command" prompts for one DOS command and then executes it. ARJ
- then returns to expect an answer to the current yes/no query. You
- should keep the query in mind as ARJ does NOT always redisplay
- the full query message.
-
-
- ARJ ERROR LEVELS
-
- ARJ will now return a DOS errorlevel of 9 when trying to process a
- file that is NOT an ARJ archive.
-
- With the new option "-hl", ARJ will return a non-zero errorlevel
- when a user specified filename from within an ARJ listfile cannot
- be found on disk. Ordinarily, ARJ returns no error for such a
- situation.
-
-
- ARJ ARCHIVE NAME WILDCARDING
-
- ARJ allows the wildcarding of the archive parameter for ARJ
- commands other than the add commands (a, f, j, m, u). If the "-r"
- option is specified, ARJ will scan through subdirectories looking
- for ARJ archives to process.
-
- This feature allows a user to delete a specific file from a series
- of archives.
-
- Example: ARJ d *.ARJ bbs.ad
-
- This feature could also be used to extract a series of archives.
-
- Example: ARJ e *.ARJ
-
- The new "-hr" option allows ARJ to process multiple archives that
- cause errors.
-
-
- ARJ COMMAND LINE PROCESSING
-
- For non-add type commands, ARJ will now always use the full
- specified pathname for selecting files within an archive by
- matching against the full specified pathname.
-
- Example: ARJ x archive d:\temp\ f:\data\1994\report.txt
-
- ARJ will now accept an ARJ command line from a response file as in
- "ARJ @command.rsp". The "@" symbol indicates that the appended
- name is the name of the response file. In this case, the file is
- command.rsp. The response file symbol cannot be changed.
-
- The response file should contain the ARJ command line minus the
- initial "ARJ". The command line may be split over as many lines
- as necessary. The response file feature will NOT accept QUOTED
- command line options. Options with embedded blanks ("-vasTEST X")
- will not be processed as expected. When using the response file
- feature, ARJ will accept only the "-+", and "-&" switch options on
- the DOS command line along with the response file name. All other
- command options must be specified in the response file or in the
- ARJ environment variable.
-
-
- ARJSFX COMMAND LINE PROCESSING
-
- All of the ARJ self-extractors feature a new option to embed any
- command line options into the self-extracting archive itself. This
- helps reduce the need for extra programs or batch files.
-
- To implement this feature, you would insert the required command
- line as the first line of the ARJ archive comment. The beginning
- of the command line must be preceded by the two characters "))".
- Only the first 80 characters of the embedded command line will
- be processed.
-
- Example: )) C:\DIR\ -o -m
-
- The non-shareware version of this software will not display the
- customized command line demonstration message.
-
- The larger ARJ self-extractor (-je) supports the new command line
- option "-s" to allow the skipping of the ARJ-SECURITY envelope
- verification test if an envelope exists. ARJSFX also supports the
- new "-o" option to force overwrites, the "-m" option to skip the
- create directory prompt, and the "-w" option to skip the extract
- prompt. The new "-b" option prompts the user for the name of the
- install directory. The target directory on the command line is
- used as the default install directory. A new "-k" option will
- display the long form of the file extraction messages.
-
-
- ARJSFXJR COMMAND LINE PROCESSING
-
- The small ARJ self-extractor (-je1) supports command line
- options.
-
- ARJSFXJR [-switch(es)] [drive:][target_dir\]
-
- switches:
- n: set ARJSFXJR to NOT count as an error the skipping of files
- o: set ARJSFXJR to overwrite existing files
-
- You can specify a target_directory or drive or both. However,
- you must specify the ending "\" or ":" symbol.
-
- ARJSFXJR -o C:\SOFT\ -> self-extract into directory "C:\SOFT\"
- in overwrite mode.
-
-
- ARJ COMMANDS
-
- "d" command
-
- *** The following information was left out of ARJ.DOC at 2.41 ***
-
- If specify "*.*" as the filespec, ARJ will prompt for permission to
- delete. You can specify the "-y" or "-jyd" options to inhibit the
- delete prompt.
-
- If ARJ removes all files from an archive, it will delete the empty
- archive.
-
- The delete command normally only deletes non-backup files. You
- must specify the "-jg" option to select backup files, too.
-
- You can specify the "-n" (new) option to delete the files in the
- archive that DO NOT EXIST on the disk. You can use the same "-n"
- option with "ARJ l" to list the files that DO NOT EXIST on the
- disk. This is useful in synchronising an archive to a directory.
-
- Examples: ARJ d archive *.* -n
- ARJ l archive temp\ *.doc -n
- ARJ d archive temp\ *.doc -n
-
-
- "f" and "u" commands
-
- As of 2.42c, when updating archives with the -jv option selected,
- ARJ will display a message for each file processed including
- files that have not been updated. A message indicating that
- there has been "no change" will be displayed when no actual
- update of a file took place.
-
-
- ARJ SWITCHES
-
- "-b4" switch
-
- The "-b4" switch is used to set ARJ to NOT restore any file
- attribute bits and to reset the archive bit of files being
- extracted. It is useful for easing the cleanup/deletion of
- temporarily extracted archive files as in a virus scanning process.
-
-
- "-b5" switch
-
- This switch used with the "e" or "x" commands sets ARJ to not
- restore any of the original file attributes bits. However, the
- archive bit will be left set.
-
-
- "-f1" switch
-
- This switch used with the "e" or "x" commands sets ARJ to only
- extract OLDER files from the archive.
-
-
- "-u1" switch
-
- This switch used with the "e" and "x" commands causes ARJ to
- extract OLDER and non-existing files.
-
-
- "-u2" switch
-
- This switch used with the "e" and "x" commands causes ARJ to
- extract CHANGED (different date-time or different size) and
- non-existing files.
-
-
- "-v" switch
-
- When the multiple volume ARJ files to be used are located on drives
- with removable media (diskette drives, etc.), ARJ will ALWAYS
- PROMPT for the next diskette even with the "-y" option specified.
- However, you can suppress the next volume prompt with the "-jyv"
- option. At DOS versions before 3.0, only drives A and B are
- considered removable.
-
- After the pause to change diskettes, ARJ will check to make sure
- that the diskette has been changed. However, this check is limited
- to 3 retries for the same volume. This test can be inhibited with
- the "i" modifier.
-
- Example: ARJ x a:archive -vi
-
- ARJ will not allow the updating of multiple volume archives unless
- the "-hu" option is specified.
-
- The "r" modifier allows the reservation of disk space on the first
- volume. The number after the "r" specifies the space to reserve.
- This is useful for software installation volumes built on the hard
- disk.
-
- Example: ARJ a install -v360r50K make first volume 50000 bytes
- smaller than 360K.
-
- Example: ARJ u archive -v360u
-
- The "z" modifier works like the "s" modifier except that the system
- command is NOT echoed to the screen.
-
- The "-v" switch now accepts its modifiers in any order. The "s"
- and "z" modifiers must be last because any succeeding text is
- considered the system command to execute.
-
- Examples: ARJ a volume -vavw beep, autosize, whole files
- ARJ a volume -vavsDIR beep, autosize, execute DIR
-
-
- "-je" switch
-
- This switch will create a multiple volume self-extracting archive
- when used with the "-v" switch. This option combination requires
- DOS 3.0 and above.
-
- Example: ARJ a a:install c:\software\*.* -je -va
-
-
- "-jf" switch
-
- It is now possible to extract a file stored with an absolute path
- to another directory from an archive containing similar paths
- differentiated only by drive letters.
-
- Example: ARJ x archive d:\temp f:\data\1994\report.*
-
-
- "-js" switch
-
- The "-js" switch will recognize "." alone as a file extension
- indicating no file extension as in "-js." and "-js..arc"
-
-
- "-jv" switch
-
- The "-jv switch will display a "no change" message when updating
- an archive with files that are already up to date.
-
-
- "-h#" switch
-
- The "-h#" switch sets ARJ to append the current date string in
- the form YYMMDD to the current archive name while keeping the
- file extension the same.
-
- The "-h#1" switch sets ARJ to append the current time string in
- the form HHMMSS to the current archive name while keeping the
- file extension the same.
-
- The "-h#2" switch sets ARJ to append the current date-time
- string in the form DHHMMSS to the current archive name while
- keeping the file extension the same.
-
- Examples: ARJ a XX -h# *.c creates archive name XX931209.ARJ
- ARJ a YY -h#1 creates archive name YY123000.ARJ
- ARJ a Y -h#2 creates archive name Y8123000.ARJ
-
- This function does NO checking for exceeding the proper filename
- length.
-
-
- "-hm" switch
-
- The "-hm" switch sets ARJ to transfer the list of filenames to be
- archived from precious memory to file storage. This allows a much
- larger number of files to be processed (over 32,000). This option
- is ignored for all ARJ commands except "a", "f", "j", "m", "u".
-
- Normally, this switch sets ARJ to wait until it is out of memory
- storing filenames into a list before transferring that list to a
- temporary file. That temporary file is put in the current
- directory or the special work directory if specified (-hm!F:\).
- However, there may be a few cases where ARJ will run out of memory
- doing other tasks while it is storing this list. In these cases,
- ARJ will abort. The user can specify a numeric argument to this
- switch to force ARJ to transfer the list to file storage sooner.
- This argument specifies the maximum number of filename entries to
- store in memory. If the list exceeds that number, the entries are
- transferred from memory to a temporary file.
-
- The "-hm" work directory is specified by appending a "!" to the
- "-hm" or "-hm5000" options and then appending the filename to the
- option. See below.
-
- Examples: ARJ a archive c:\*.* -r -hm
- ARJ a a:archive c:\*.* -r -va -hm5000!F:\
- ARJ a a:archive c:\*.* -r -hm!G:\temp\
-
- This feature has at least two disadvantages. The checking for
- duplicate filename specifications may become disabled (ex: *.DOC
- and MANUAL.* duplicates MANUAL.DOC). Updating archives will become
- slower. Extra disk space is required for the temporary file list.
- The use of a RAMDISK directory will provide the fastest operation.
-
-
- "-hn" switch
-
- The "-hn" switch sets the filespec that does NOT match any file.
- The default filespec is "...". However, on some systems like
- NOVELL, there is a valid filespec "...". Since ARJ sometimes needs
- a filespec that is strictly a placeholder, this option should be
- used to specify some name that does not exist on disk.
-
- This option must be specified prior to any use of the non-matching
- filespec. Setting it via the ARJ_SW variable is an excellent
- choice.
-
- Example: ARJ e -hn#### archive #### -zcomment.txt
- SET ARJ_SW=-hn####
-
-
- "-ho" switch
-
- The "-ho" switch used with the "e" or "x" extract commands allows
- file extraction based upon a text search. ARJ will prompt the
- user for text strings to search unless the "-jq" option has been
- specified. See the "-jq" option in ARJ.DOC for detailed use
- information. ARJ will extract a file within an archive if the
- file contains at least one occurrence of any of the specified
- search strings.
-
- Examples: ARJ e archive -ho
- ARJ e archive -ho -jq+3+textstring
-
-
- "-ho1" switch
-
- The "-ho1" switch used with the "e" or "x" extract commands allows
- file extraction based upon a text search. ARJ will prompt the
- user for text strings to search unless the "-jq" option has been
- specified. See the "-jq" option in ARJ.DOC for detailed use
- information. ARJ will extract a file within an archive if the
- file contain NO occurrences of any of the specified search
- strings.
-
- Examples: ARJ e archive -ho1
-
-
- "-hr" switch
-
- The "-hr" switch sets ARJ to attempt to continue processing
- successive archives even when they contains errors. This option is
- intended for ARJ wildcard use such as in the "ARJ t *.ARJ -hr"
- command.
-
-
- "-hv" switch
-
- The "-hv" switch is used to verify the ARJ version number and/or
- whether the ARJ program is registered. If the "-hv" option is
- specified by itself or with an appended "R", an unregistered ARJ
- will abort with an errorlevel of 1. If a version number string
- is appended to the "-hv" option, a lower version numbered ARJ
- will abort with with an errorlevel of 1.
-
- Examples: ARJ a archive -hv check if registered
- ARJ a archive -hvr check if registered
- ARJ a archive -hv2.50 check for version 2.50 or greater
- ARJ a archive -hvr2.50 check if registered and version
- 2.50 or greater
-
-
- end document
-
-