'tar' - is an acronym for 'tape archiver'

It is a tool to save files to archive media and restore them back
again. Despite of its name, the program handles many media types,
be it a floppy disk or regular file.

The program was initially written for UNIX operating system, but
since many other OS support its format, tar became a useful tool
for information exchange between different platforms.

This document describes yet another implementation of the program,
which could be noted for portability between MS-DOS and UNIX
clones, portability both in data format and source text level.


	System requirements

Program will execute
 - on any IBM PC compatible computer running MS-DOS 3.0 or
   compatible OS;
 - any generic UNIX clone.

Before running the program you will probably have to compile it,
especially if you are a UNIX user. To do that you should have:
 - any C compiler compatible with K&R or ANSI standard - for
   UNIX version;
 - Turbo C v2.0 under MS-DOS 3.30 - for DOS version.

Declaring such a wide portability shall probably have some
restrictions, but, alas, I do not know about them.

The size of free memory required for program depends of the action
selected. As a rule, about 100K bytes is enough to read/write
archives without compression. If you are going to use compression
options, the program can take all the megabytes available.

Anyway, the program will be able to process archive in a regular
file (see below). It also supports floppy diskettes and streamer
tape devices of several types under MS-DOS. Media types available
under UNIX is determined by device drivers available in the
system.


	Running the program

The program can be run simply from command line. You have to type
to the system prompt a line with the following syntax:

	Tar <options> <file> ...

where options define both action to perform and some additional
options. You have to specify at least one option to define
action, and command line must contain only one action option.

Options could written in two forms.
First one is traditional for UNIX: each option is represented by
single character, character may be merged in groups, preceded by
minus (-) sign.
Second form became popular in recent times: each option is
represented by word, word options are preceded by plus or double
minus sign to distinguish them from group of character options.

Command line parameter (save first) without first plus or minus
sign denotes end of option and start of file specification list.
File specifications may be omitted for reading archive
(extraction files or printing archive contents) in this case the
program will process all the files in archive; other options makes
the list obligatory.

For compatibility with old implementations of tar first command
line parameter (if it is not an word option) is always treated as
group of single-character options.

Some options require subsequent parameters such as numerical value
or a file name, in the latter case parameters must follow the
option or option group separated by spaces. Parameters following
the group of character options must be specified exactly in the
same order as the options they follow - be careful.

The following is a list of options along with their descriptions
(unlike most other implementations this program is case
insensitive, i.e., makes no difference between upper and lowercase
letters). Options are mentioned with both single-character and
word form (if any). Word options are distinguished by first eight
character, they also may be shortened down to minimum number of
characters needed to distinguish them; if the beginning of word
option matches two (or more) options the program will choose one
of them according to its own tastes.

-a, +append - add (store) files to archive, the option is fully
	analogous to traditional 'r' option, and was added to user
	convenience.
	You have to specify the list of files to be stored.
	Note, that normally files are appended to the end of
	archive, so the archive can contain several files with the
	same name; by default, the program will extract the latest
	version. Such a behavior may be changed by 'c', 'd' and
	'w' options.

-x, +extract - extract files from archive; program extracts
	specified files, if no file name is given, the whole
	archive will be extracted. If the directory name appears
	in command line, the program extracts all of the files and
	subdirectories in a given directory.

-t, +list - type archive directory. The files to be processed are
	defined as for the 'x' command.
	The program outputs list of file names, unless 'v'
	modifier is given. With 'v' option each file name is
	preceded by its UNIX access rights mask, numeric user and
	group identifiers and file length in bytes. Usage with 'e'
	or 'z' option forces printing both compressed and original
	file lengths.

-d, +delete - the specified files will be deleted from archive;
	this option is for file archives only.

-r - read files from disk to archive; the option is an alias for
	'a', it is preserved for the compatibility reasons.

-c, +create - the 'a' option implies that archive media contains
	an existing tar archive, or archive file already exists.
	The 'c' option creates a new archive or overwrites old one
	(if any). This option also implies 'a' so you do not need
	to specify it.

-y, +move - delete files and directories after storing them into
	archive. This option implies 'a'.

-u, +update - update archive. Normally program stores all of the
	files specified. Given option causes tar to store files
	only if they are not present in archive or if the files
	were modified.
	This option implies 'a'.

-i, +inhibit - ignore read errors. This option may help (but may
	not) to restore damaged archive.

-v, +verbose - normally program works silently; this option forces
	printing of a log with most operations or produces a lot
	of additional information with 't' option.

-w, +interactive - the program will ask for your confirmation
	before processing each file.

-e, +zip-files - apply a 'deflate' compression to archive files.
	Single-character form allows to specify compression level
	by the single digit immediately after 'e' letter; legal
	values are from 1 to 9 (e.g. e9 - the more compression
	level, the better compression ratio will be - default is
	6); note, that this rule does not follow regular command
	line syntax.
	Keep in mind that you won't be able to restore the
	compressed file by standard 'tar' program.
	Portable tar version 3.15 or below uses another kind of
	data compression. Current version allows restoring of old
	archives, but the archives created by current version of
	the program with -e option would not be restored by
	previous versions.

-z - compress files in archive with traditional UNIX algorithm.
	It is compatible with most Unix systems, so you can
	extract files with 'uncompress' or even 'tar' program
	alone, but this algorithm has comparatively low
	compression ratio. You may specify 'bits' factor typing it
	immediately after z letter (e.g. z12); note, that this
	rule does not follow regular command line syntax.
	See 'compress' program manual to understand 'bits' factor
	meaning.

-, (comma), +compress - this option is similar to 'z', but the
	whole archive will be (de)compressed rather than
	individual files.

-. (dot), +zip-archive - this option is similar to ',' (comma) and
	allows to read and create deflated archive in regular zip
	or GNU zip format. It's possible to specify compression
	level for created archive by the single digit immediately
	after dot sign; legal values are form 1 to 9 (the more
	compression level, the better compression ratio will be).

-s, +strict - program will not process '?' and '*' wildcards in
	archive file names.

-m, +modification-time - sets modification time of files to
	current time. By default the program sets date and time of
	modification for extracted files exactly as they have
	before they have been placed into archive.

-o - option meaning depends on the host operating system, namely
     under UNIX it means -
	omit files owner. By default program tries to restore
	original files owner and group. The option forces tar to
	set the user who invokes tar as files owner, which is
	especially useful when files are marked with zero owner,
	i.e. 'root'.
     under DOS respectively -
	prevent files overwriting. There exists a chance that two
	or more UNIX files will have same DOS names, so they
	couldn't co-exist onto DOS disk. If the 'o' option given,
	the program will rename extracted file if there is a file
	on the disk with the same name. This option can also
	affect multivolume processing. Namely, if two different
	UNIX files have same DOS names and second file is
	fragmented between volumes then extents of the second file
	will be appended to first one. Alas, I see no solution for
	this problem.

-l - option meaning depends on the host operating system, namely
     under UNIX (equivalent is +link-warnings) it means -
	print list of files being archived, which have other links
	besides those placed in archive.
     under DOS (equivalent is +link-copy) respectively -
	make copies of linked files to simulate UNIX links
	(otherwise the program will extract first copy only and
	print warning messages on the others).

-p, +permissions - save in archive directories info (e.g. owner
	and permissions) as well as files.

-n, +nonest - no directory nesting. The program will not recurs
	into subdirectories.

-/ for UNIX or -\ for DOS - omit left <back>slash in file names.

-: (colon) - omit MS-DOS drive name from file name.

-j, +comment - you will be prompted to add file comment while
	storing; this comment will be shown by 't' option. Note,
	that used implementation of this option is incompatible
	with P1003 standard, so I had to choose between either
	standard or backward compatibility. In any case you'd
	better avoid this option.

-f, +file - this option requires an argument - a name of archive
	file or special file.
	By default, program tries to get a file name from 'TAPE'
	environment variable. If no archive name is given, tar
	tries to handle floppy disk under MS-DOS or to use
	/dev/mt0 under UNIX.
	File names are also used to support hardware devices, i.e.
	floppy disks and streamers. See section 'Special files'
	below.
	You also can store default file name (without 'f' option
	itself) into 'TAPE' environment variable - this is
	especially useful with streamer devices.
	The name consisting of single minus sign stands for
	standard input/output. This is UNIX convention and it is
	better to avoid this possibility under MS-DOS.

-k - this option requires an argument, storage media capacity.
	Capacity units may be specified by letter after numerical
	value: 'k' - kilobytes (default) or 'm' - megabytes
	(currently useless).
	Although the program tries to adjust appropriate diskette
	type for a given hardware, you often will not be able to
	read or write floppies without defining its type.
	This option is not applicable in UNIX version.

-b, +block-size - this option requires an argument, so called
	'blocking factor'. Block size units may be specified by
	letter after numerical value: 'b' - 512-bytes blocks
	(default) or 'k' - kilobytes. This program allows blocking
	factor in the range of 1 to 32 (512 bytes to 16K
	respectively). The sense of the option is rather tricky.
	Big blocking factor allows to save much space on some tape
	devices, but if you are going to transfer data between
	different computers I strongly recommend not to use
	blocking factor more than 16. Note, that original tar does
	not allow values more than 20.
	In general this option does not influence the resulting
	archive with floppy devices or regular files, but
	appropriate value can dramatically increase tar speed.
	Except floppies this program adjust the most appropriate
	blocking factor, so you do not need to use this option,
	but it is also possible that you will not be able to
	restore files without setting properly the value for a
	given archive.
	Optimum blocking factor for floppies is multiple of
	number of sectors per track. Unfortunately some BIOSes
	requires small bloksizes, so you should try optimum value
	with your system.

[0-9] single digit stands for the number of storage device;
	e.g. 1 means MS-DOS drive B: or second streamer tape.

-@ - this option requires an argument - a name of file, containing
	the continuation of a command line. This option allows tar
	to read a list of file specification from a separate file.
	As above, a file name consisting of single minus means
	standard input. The size of input defined by this option
	must not exceed 32760 bytes.

-#, +exclude - this option requires an argument - specification of
	files which must not be processed (excluded from the
	operation). Specification may be simple file name or it
	can contain * and ? wildcards (unless 's' option given).
	Keep in mind that these wildcards will be processed in
	UNIX style.
	This option may occur up to 16 times in a command line,
	each occurrence introduce another specification (count
	carefully!)

+gnu or +gzip - this option causes tar to create deflated archive
	in gzip format (rather than regular zip) with -. (dot)
	option. This option itself does not imply compression, so
	you must specify dot explicitly if needed.


     Special files

Special files (also called 'device drivers') are widely used in
UNIX to interact with hardware devices. There are no useful
special files under MS-DOS (oh, of course you can create an
archive at 'nul', it will go to the neverland), but DOS version
supports its own internal special file names.

Common notices:
1. If you want to process a disk file which name coincides with
   tar special file simply supply dot in a file name.
2. If the computer has two storage devices of same kind, the
   actual device used by program is determined by both special
   file name and single-digit option (see above).
   Regardless of native enumeration tar devices always counted
   from zero (0 means floppy drive A: or first QIC-02 streamer
   etc.)

Tar special files are divided into three groups.

The following file names designate floppy devices:
   fd048ss8, fd048ds8, fd135ds9, fd048ss9, fd048ds9, fd135ds18,
   fd096ds9, fd096ds15, rainbow
Such a "file name" consists of the following components:
 - device type, e.g 'fd';
 - floppy radial density, e.g. 048, 096 or 135 tracks per inch;
   first two relate to 5.25" floppies, the last is for 3.5" disks;
 - number of working surfaces: ss means 'single side' while
   ds - 'double side';
 - the last value is a number of sectors per track.
Note, that usually you do not need to use this mechanism, it could
be better to set 'k' option instead.

The last name, "rainbow", is for disks in DEC Rainbow format; it
has no equivalent options. For better hardware compatibility it is
recommended to format such disks on the PC they will be read or
written. There exists a couple of PC programs, which allow such
formatting.

The second group of special file names refers to QIC-02 streamer
tape devices. Be aware that you have QIC-02 device, since the
program does not support for example floppytape devices.

Since streamers have no standard software interface like BIOS it's
necessary to mention device hardware configuration in a command
line (or 'TAPE' environment variable).
So, streamer 'file name' have a complex syntax, it includes
 - device name itself, followed by
 - separator - colon or semicolon - and
 - parameter list.

The parameter list consists of parameter groups separated by
commas, semicolons or dots (there is no difference).

Each parameter group (save 'norewind' or 'add' parameters - see
below) in turn consists of keyword followed by assignment (:=) and
some value.

The program recognizes three device names:
	Archive, Everex and Wangtek
Each name means device clone name and corresponds to plenty of
device brands. Most of existing QIC-02 streamers belongs to one of
the above three types.	The names of the clones are borrowed from
the trademarks of their respective manufacturers but keep in mind
that there is no strict rule (e.g. Archive corporation produced
streamers that fits to Everex clone). Usually you have test you
streamer with different device names to select appropriate one.

Parameter list may include the following options (most of them
concerns to hardware, so consult you streamer documentation):
base:=<sexadecimal value> - IO base address,
     this is the only obligatory parameter;
dma:=<octal digit> - DMA channel number;
     there is a rumor about devices without DMA, but I have not
     seen one, so usually you have to use this option;
irq:=<decimal number from 0 to 15> - interrupt request number;
     as a rule you do not need to use this option, but it may or
     may not solve hardware problems, such as
     - another device uses same interrupt request number,
     - your system BIOS has no default handler for hardware
       interrupts;
qic:=<QIC standard number> - defines tape format/capacity,
     valid QIC numbers are 11, 24, 120, 150, 300, 600, 2100
     and 2200;
     first four formats may also be specified by corresponding
     number of tracks as
tracks:=<decimal number>
     Note, that most streamer devices can not support all this
     formats; since the program can not detect formats supported
     you should yourself care of proper tape format. Fortunately
     most streamers detect format of existing data or set its
     default format for writing, so as a rule you do not need in
     this option at all.
norewind - this option is supplied to maintain several archives
     on a single tape. (Note that QIC-02 standard does not allow
     to add files into existing tar archives. This program
     includes an option to do that, but it is possible that
     hardware disables it. You do allowed to handle several
     archives on a tape, but keep in mind that it is not allowed
     by some UNIX systems).
skip:=<decimal number>
     skip given number of file marks before processing archive.
     This is yet another option to keep several archives on tape.
     (This option must be - and will be - implemented as a command
     line switch rather than device parameter.)
add - position tape at end of recorded data before processing
     archive. This is yet another option to keep several archives
     on tape. This options use command marked as 'optional' by
     QIC-02 standard, so it may not work with your device - in
     such case use 'skip' or 'norewind' instead.
     (This option must be - and will be - implemented as a command
     line switch rather than device parameter.)

Unlike device name, parameters may be shortened, it is possible to
mention as many (few) letters from keyword as you like or omit any
part - ':' or '=' - of the assignment sign or both of them (see
example below).

The only blocking factor allowed by all QIC-02 devices is 1 - and
it is default value for streamer tape in this program. Unlike many
other implementations which fragments large logical block into
small physical pieces, you are allowed to change the physical
block size, but I have no idea about results.

Third group of special files include three names: ASPI, ASPIMGR$
and ASPITape. All these names are aliases for ASPI-driven SCSI
tape drives (streamers). To use this feature you must have
previously installed ASPI driver in your system.

ASPI is an acronym for Advanced SCSI Programming Interface.
ASPI specifications are property of Adaptec Inc., and ASPI itself
is current de-facto standard to control SCSI devices under DOS.
All ASPI drivers I've ever seen are copyrighted commercial
products, so ASPI driver may not be supplied with this program.

Like QIC-02 devices, special file name may include parameter list
with syntax described above, but all the parameters are optional.
By default the program asks ASPI manager for a tape device (tape
device with given sequential number if specified by single-digit
command line option). If you specify single-digit command line
option you may not use anything from adapter-target-LUN triple
and vice versa.

Parameter list may include the following options:
adapter:=<digit> - host adapter number (0, 1 etc.);
target:=<octal digit> - target number (see SCSI specifications
	and/or hardware manual for more info);
lun:=<octal digit> - logical unit number (see SCSI specifications
	and/or hardware manual for more info);
density:=<value> - SCSI density code, may be specified as decimal
	or hexadecimal value (using C or Assembly language
	notation); legal values are from 0 to 255,
	SCSI standard definitions are summarized in the following
	table:

	0x0  default for device
	0xE  reserved for ECMA

	Value Tracks Density(bpi) Code Type Reference	  Note
	0x1	9	800	  NRZI	R   X3.22-1983	  2
	0x2	9      1600	  PE	R   X3.39-1986	  2
	0x3	9      6250	  GCR	R   X3.54-1986	  2
	0x4    4/9     8000	  GCR	C   QIC-11	  1,4
	0x5    4/9     8000	  GCR	C   X3.136-1986   1
	0x6	9      3200	  PE	R   X3.157-1987   2
	0x7	4      6400	  IMFM	C   X3.116-1986   1
	0x8	4      8000	  GCR	CS  X3.158-1986   1
	0x9    18     37871	  GCR	C   X3B5/87-099   2
	0xA    22      6667	  MFM	C   X3B5/86-199   1
	0xB	4      1600	  PE	C   X3.56-1986	  1
	0xC    24     12690	  GCR	C   HI-TC1	  1,4
	0xD    24     25380	  GCR	C   HI-TC2	  1,4
	0xF    15     10000	  GCR	C   QIC-120	  1,4
	0x10   18     10000	  GCR	C   QIC-150	  1,4
	0x11   26     16000	  GCR	C   QIC-320(525?) 1,4
	0x12   30     51667	  RLL	C   QIC-1350	  1,4
	0x13	1     61000	  DDS	CS  X3B5/88-185A  3
	0x14	1     43245	  RLL	CS  X3.202-1991   3
	0x15	1     45434	  RLL	CS  ECMA TC17	  3
	0x16   48     10000	  MFM	C   X3.193-1990   1
	0x17   48     42500	  MFM	C   X3B5/91-174   1

	where Code means:
	NRZI Non Return to Zero, change on ones
	GCR  Group Code Recording
	PE   Phase Encoded
	IMFM Inverted Modified Frequency Modulation
	MFM  Modified Frequency Modulation
	DDS  Dat Data Storage
	RLL  Run Length Encoding

	where Type means:
	R    Reel-to-Reel
	C    Cartridge
	CS   cassette

	where Notes means:
	1    Serial Recorded
	2    Parallel Recorded
	3    Helical Scan
	4    Not ANSI standard, rather industry standard.

code:=<value> - alias for "density";
qic:=<number> - functional equivalent to density code, allows to
	specify tape format accordingly to QIC number; valid
	numbers are 11, 120, 150, 320, 525 and 1350;
skip:=<decimal number> - skip given number of tape markers, see
	QIC-02 devices for details;
norewind - see QIC-02 devices for details;
erase - erase the whole tape before processing;
fluent - do not reset device: some hardware and/or ASPI drivers
	can't handle software reset properly, in such a case
        try this option.

Hint:	try to specify as few parameters as possible.
	Aspitape in most cases will work without any parameter.

GENERIC WARNING: I made all possible efforts to provide robust
hardware interface, but I have no means to make it 100% reliable.
So BEFORE storying any useful information, please check that data
written by this program can be read afterwards.


     Environment variables

Program encounters the following environment variables:

TAPE -	if set, contains a default archive file name (an argument
	for -f option) and is especially useful for streamer names
	with complicated syntax;
TARCMD - is intended to provide default settings, namely, if the
	string pointed to by this variable begins with
	- slash under UNIX
	- backslash or letter, colon and backslash under DOS
	it is considered the name of file, containing default
	command line for the program; in other case it is treated
	as the command line itself.
	It would be a good idea always precede command line
	options by minus to avoid ambiguity (e.g. 'c:\file' is
	valid command-line option under DOS).
	Note, there is no way to annul these default options.
TZ -	if set, contains timezone settings; if this variable do
	not set or set improperly files will be placed in archive
	with wrong timestamps, nevertheless, you will not see
	anything bad until you read files on another computer or
	OS. TZ variable built accordingly rules described in
	relevant documentation but displacement from GMT would be
	enough (four digits for hours and minutes preceded by
	sign, e.g. Moscow timezone setting TZ=MSK-3MSD is
	equivalent to TZ=-0300 during winter).


     Examples

List file names in archive anyfile.tar:
	Tar tf anyfile.tar

Print verbosely directory of 1.2M floppy in drive B:
	Tar tv1k 1200

Store all files from given list to tape, as dense as possible:
	Tar cvbf.9 32 /dev/tape +g -@ listfile.s

Extract all files from streamer cartridge (in DOS), hardware
chosen as IO base address 300h, DMA channel 1 and QIC-24 tape
format:
	Tar -xvf archive:b300,dma:=1,t:9


     Compiling the program

Before doing this, you need to have a properly installed C
compiler.

Place program sources into separate directory, then
 - type !compile at the DOS prompt to build DOS version.
 - issue make command to build UNIX version.

Note: if you work under ISC UNIX or another System V, you should
      try 'make -f makefile.ix' command to decrease size of the
      executable file.


      Diagnostics

Can only handle XX bits. Continue?
	Not enough RAM to perform un/compression with desired
	bits factor (either default or specified). You will be
	prompted to continue with maximum possible bits factor.

Diskette capacity XXXK assigned
	Since you have not specified diskette capacity, the
	program informs you about its choice.

Extract anyway?
	Archive file can not be uncompressed due to some reason
	and you are prompted to extract its compressed image.

File compressed with XX bits, can only handle XX bits.
	Archive file can not be uncompressed for the current bits
	factor is less than the factor during compression.

File is not in compressed format
	Although archive has '.Z' suffix, its structure does not
	match compressed one. Thus, the file can not be
	uncompressed and you will be prompted to extract it as is.

No memory for encoding. Continue?
	Files can not be packed due to lack of free memory. You
	are prompted to store them unpacked.

Tar: XXX blocks skipped to find header
	Archive corrupted, skipped blocks possibly contains lost
	information.

Tar: '...' checksum error
	Checksum algorithm fails while unpacking the file.
	The data is probably corrupt.

Tar: '...' decode error
	Internal compressor error.

Tar: '...' decreased size
	File decreased size while the program stored it.

Tar: '...' exceeds limit in size
	Input for '@' option exceeds 32760 bytes in size.

Tar: '...' name too long
	The name of file in archive must not exceed 100
	characters.

Tar: '...' seek error
	Error processing file.

Tar: 'm' and 'u' options ambiguous
	Do you really want both this options?

Tar: archive unchanged
	There was no job for 'u' or 'd' options.

Tar: bad blocksize (max is 32)
	The program allows block factor in the range of 1 to 32.

Tar: bad directory structure
	Archive is corrupted (file header error).

Tar: bad option '?'
	Invalid character in option string.

Tar: base address must be specified
	Error in streamer parameters (DOS only).

Tar: blocksize = XX
	Since you have not specified block factor, the program
	informs you about its choice.

Tar: blocksize multiply defined
	You have specified block factor more than once.

Tar: can't access '...'
	Error processing file.

Tar: can't create '...'
	Error processing file, probably the file system at your
	computer is full.

Tar: can't create directory '...'
	Error processing file, probably the file system at your
	computer is full.

Tar: can't create scratch file
	Error processing file, probably the file system at your
	computer is full.

Tar: can't delete '...'
	Error processing file.

Tar: can't delete scratch file
	Error processing file, this usually does not mean tar lost
	some data, but it indicates some filesystem problem.

Tar: can't find '...'
	No file matches given wildcard specification (DOS only).

Tar: can't handle '...'
	Error processing file.

Tar: can't link '...' - data stay in '...'
	The program can not restore links properly (UNIX only).

Tar: can't link '...'
	The program can not restore links properly (UNIX only).

Tar: can't open '...'
	Probably the file given does not exist or access denied.

Tar: can't open directory '...'
	Error processing directory, probably access denied.

Tar: can't open file '...'
	Probably the file given does not exist or access denied.

Tar: can't process '...'
	Error processing file.

Tar: can't read '...'
	Error processing file.

Tar: can't remove '...'
	The directory mentioned can not be deleted.

Tar: can't rename '...' to '...'
	Error performing 'd' option, archive stayed unchanged.

Tar: can't update stdout
	You may not apply given option to standard output.

Tar: delete option is for file archives only

Tar: device parameter error
	Error in streamer parameters (DOS only).

Tar: directory checksum error
	Archive is corrupted (file header error).

Tar: diskette error: ...
	Probably the diskette is corrupted.

Tar: drive not present
	You have specified diskette drive which does not exist
	(DOS only).

Tar: error extracting '...'
	Error processing file. Possible reason: there is no space
	left on the hard disk.

Tar: error processing '...'
	Error processing file.

Tar: error reading '...'
	Error processing file.

Tar: error shrinking memory block
	Internal runtime error.

Tar: fault run mkdir!
	The 'mkdir' command was not found in /bin, /usr/bin and
	/etc directories (UNIX only).

Tar: fault run rmdir!
	The 'rmdir' command was not found in /bin, /usr/bin and
	/etc directories (UNIX only).

Tar: incompatible options

Tar: input must be free
	It is not allowed to use standard input with 'f' option
	and any of 'w' or 'j' options.

Tar: insert NEXT diskette and press ENTER when ready...
	You are prompted to continue multivolume archive
	processing.

Tar: invalid base address
	Error in streamer parameters (DOS only).

Tar: invalid bits factor
	The bits factor must be in range of 12 to 16.

Tar: invalid character after 'X'
	Error in streamer parameters (DOS only).

Tar: invalid diskette size
	Allowed arguments for 'k' option are: 160, 180, 320, 360,
	720, 1200, 1440, 2880 (DOS only).

Tar: invalid DMA channel number
Tar: invalid IRQ number
Tar: invalid number of tracks
Tar: invalid QIC number
	Error in streamer parameters (DOS only).

Tar: missed XX link(s) to '...'
	The file has multiple links and given number of them were
	not stored in the archive; you will not see this message
	unless 'l' option is given (UNIX only).

Tar: no files specified

Tar: no memory to unpack.
	You will be prompted to extract packed image.

Tar: not enough memory to uncompress
	You will be prompted to extract compressed file.

Tar: not enough memory

Tar: nothing to do
	You have to specify either 'a', 'x', 't' or 'd' option.

Tar: out of memory; link(s) lost
	Not enough memory to keep list of links, links will be
	stored in archive as a separate files (UNIX only).

Tar: tape blocksize error
	Error processing archive.

Tar: tape close error
	Error processing archive.

Tar: tape device multiply defined
	You have specified ambiguous options.

Tar: tape read error
	Error processing archive.

Tar: tape seek fault
	Error processing archive.

Tar: tape write error
	Error processing archive. Possible reason: there is no
	space for archive file on hard disk.

Tar: unknown parameter '...'
	Error in streamer parameters (DOS only).

Tar: unsupported hardware configuration
	That is (DOS only).

Tar: warning: bad sector XXX, skipped
	The sector has physical defects, tar has skipped it.
	Note: you will not be able to read such a diskette on
	another computer (DOS only).

Tar: warning: can't open terminal device, may be problems
	Standard input is used for 'f' or '@' option and the
	program can not open terminal device
	(/dev/tty - UNIX only).

Tar: warning: renamed to '...'
	UNIX file name was changed according to DOS rules.
