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gshar(1)			 User Commands			      gshar(1)

NAME
       shar - create a shell archive

SYNOPSIS
       shar [-flags] [-flag [value]] [--option-name[[=|	]value]] [<file>...]

       If  no  files are specified, the	list of	input files is read from stan-
       dard input.  Standard input must	not be a terminal.

DESCRIPTION
       shar creates "shell archives" (or shar files) which are in text	format
       and  can	 be  emailed.	These files may	be unpacked later by executing
       them with /bin/sh.  The resulting archive is sent to standard  out  un-
       less  the  -o option is given.  A wide range of features	provide	exten-
       sive flexibility	in manufacturing shars and in specifying shar  "smart-
       ness".	Archives  may be fairly	simple (--vanilla-operation) or	essen-
       tially a	mailable tar archive.

       Options may be specified	in any order until a file argument  is	recog-
       nized.  If the --intermix-type option has been specified, more compres-
       sion and	encoding options will be recognized  between  the  file	 argu-
       ments.

       Though this program supports uuencode-d files, they are deprecated.  If
       you are emailing	files, please consider mime-encoded files.  If you  do
       uuencode, base64	is the preferred encoding method.

OPTIONS
   Specifying compression
       -p, --intermix-type
	      specify  compression  for	input files.  This option must not ap-
	      pear in combination with any of the following options:  vanilla-
	      operation.

	      Allow  positional	parameter options.  The	compression method and
	      encoding method options  may  be	intermixed  with  file	names.
	      Files  named after these options will be processed in the	speci-
	      fied way.

       -C program, --compactor=program
	      specify compaction (compression) program.	 This option  may  ap-
	      pear  an unlimited number	of times.  This	option must not	appear
	      in combination with any of the following options:	vanilla-opera-
	      tion.

	      The gzip,	bzip2 and compress compactor commands may be specified
	      by the program name as the option	name, e.g. --gzip.  Those  op-
	      tions, however, are being	deprecated.  There is also the xz com-
	      pactor now.  Specify xz with -C xz or --compactor=xz.

		      Specifying the compactor "none" will disable  file  com-
	      pression.	  Compressed  files are	never processed	as plain text.
	      They are always uuencoded	and the	recipient must	have  uudecode
	      to unpack	them.

	      Specifying the compactor compress	is deprecated.

       -g level, --level-of-compression=level
	      pass LEVEL for compression.  This	option takes an	integer	number
	      as its argument.	The value of level is constrained to being:
		  in the range	1 through 9
	      The default level	for this option	is:
		   9

	      Some compression programs	allow for a level of compression.  The
	      default is 9, but	this option allows you to specify something
	      else.  This value	is used	by gzip, bzip2 and xz, but not com-
	      press.

       -j, --bzip2
	      bzip2 and	uuencode files.	 This option may appear	an unlimited
	      number of	times.

	      bzip2 compress and uuencode all files prior to packing.  The re-
	      cipient must have	uudecode bzip2 in order	to unpack.

	      NOTE: THIS OPTION	IS DEPRECATED

       -z, --gzip
	      gzip and uuencode	files.	This option may	appear an unlimited
	      number of	times.

	      gzip compress and	uuencode all files prior to packing.  The re-
	      cipient must have	uudecode and gzip in order to unpack.

	      NOTE: THIS OPTION	IS DEPRECATED

       -Z, --compress
	      compress and uuencode files.  This option	may appear an unlim-
	      ited number of times.

	      compress and uuencode all	files prior to packing.	 The recipient
	      must have	uudecode and compress in order to unpack.

	      NOTE: THIS OPTION	IS DEPRECATED

       --level-for-gzip
	      This is an alias for the --level-of-compression option.

	      NOTE: THIS OPTION	IS DEPRECATED

       -b bits,	--bits-per-code=bits
	      pass bits	(default 12) to	compress.  The default bits for	this
	      option is:
		   12

	      This is the compression factor used by the compress program.

	      NOTE: THIS OPTION	IS DEPRECATED

   Specifying file encoding methodology
       Files may be stored in the gshar	either as plain	text or	uuencoded.  By
       default,	the program selects which by examining the file.  You may
       force the selection for all files.  In intermixed option/file mode,
       this setting may	be changed during processing.

       -M, --mixed-uuencode
	      decide uuencoding	for each file.	This option is a member	of the
	      mixed-uuencode class of options.

	      Automatically determine if the files are text or binary and ar-
	      chive correctly.	Files found to be binary are uuencoded prior
	      to packing.  This	is the default behavior	for shar.

	      For a file to be considered a text file instead of a binary
	      file, all	the following should be	true:

	      The file does not	contain	any ASCII control character besides BS
	      (backspace), HT (horizontal tab),	LF (new	line) or FF (form
	      feed).

	      The file contains	no character with its eighth-bit set.

	      The file contains	no line	beginning with the five	letters	"from
	      ", capitalized or	not.  (Mail handling programs will often gra-
	      tuitously	insert a > character before it.)

	      The file is either empty or ends with a LF (newline) byte.

	      No line in the file contains more	than 200 characters.  For
	      counting purpose,	lines are separated by a LF (newline).

       -B, --uuencode
	      treat all	files as binary.  This option is a member of the
	      mixed-uuencode class of options.

	      Use uuencode prior to packing all	files.	This increases the
	      size of the archive.  The	recipient must have uudecode in	order
	      to unpack.  Compressed files are always encoded.

       -T, --text-files
	      treat all	files as text.	This option is a member	of the mixed-
	      uuencode class of	options.

	      If you have files	with non-ascii bytes or	text that some mail
	      handling programs	do not like, you may find difficulties.	 How-
	      ever, if you are using FTP or SSH/SCP, the non-conforming	text
	      files should be okay.

   Specifying file selection and output	modes
       -o prefix, --output-prefix=prefix
	      print output to file PREFIX.nn.

	      Save the archive to files	prefix.01 thru prefix.nn instead of
	      sending all output to standard out.  Must	be specified when the
	      --whole-size-limit or --split-size-limit options are specified.

	      When prefix contains a % character, prefix is then interpreted
	      as a sprintf format, which should	be able	to display a single
	      decimal number.  When prefix does	not contain such a % charac-
	      ter, the string .%02d is internally appended.

       -l size,	--whole-size-limit=size
	      split archive, not files,	to size.  This option is a member of
	      the whole-size-limit class of options.  This option must appear
	      in combination with the following	options: output-prefix.	 This
	      option takes an integer number as	its argument.  The value of
	      size is constrained to being:
		  in the range	8 through 1023,	or
		  in the range	8192 through 4194304

	      Limit the	output file size to size bytes,	but don't split	input
	      files.  If size is less than 1024, then it will be multiplied by
	      1024.  The value may also	be specified with a k, K, m or M suf-
	      fix.  The	number is then multiplied by 1000, 1024, 1000000, or
	      1048576, respectively.  4M (4194304) is the maximum allowed.

	      Unlike the split-size-limit option, this allows the recipient of
	      the shar files to	unpack them in any order.

       -L size,	--split-size-limit=size
	      split archive or files to	size.  This option is a	member of the
	      whole-size-limit class of	options.  This option must appear in
	      combination with the following options: output-prefix.  This op-
	      tion takes an integer number as its argument.  The value of size
	      is constrained to	being:
		  in the range	8 through 1023,	or
		  in the range	8192 through 4194304

	      Limit output file	size to	size bytes, splitting files if neces-
	      sary.  The allowed values	are specified as with the --whole-
	      size-limit option.

	      The archive parts	created	with this option must be unpacked in
	      the correct order.  If the recipient of the shell	archives wants
	      to put all of them in a single email folder (file), they will
	      have to be saved in the correct order for	unshar to unpack them
	      all at once (using one of	the split archive options).  see: gun-
	      shar Invocation.

       -I file,	--input-file-list=file
	      read file	list from a file.

	      This option causes file to be reopened as	standard input.	 If no
	      files are	found on the input line, then standard input is	read
	      for input	file names.  Use of this option	will prohibit input
	      files from being listed on the command line.

	      Input must be in a form similar to that generated	by find, one
	      filename per line.  This switch is especially useful when	the
	      command line will	not hold the list of files to be archived.

	      If the --intermix-type option is specified on the	command	line,
	      then the compression options may be included in the standard in-
	      put on lines by themselves and no	file name may begin with a hy-
	      phen.

	      For example:
		  { echo --compact xz
		     find . -type f -print | sort
		  } | gshar -S -p -L50K	-o /somewhere/big

       -S, --stdin-file-list
	      read file	list from standard input.

	      This option is actually a	no-op.	It is a	wrapper	for --input-
	      file-list=-.

	      NOTE: THIS OPTION	IS DEPRECATED

   Controlling the gshar headers
       -n name,	--archive-name=name
	      use name to document the archive.

	      Name of archive to be included in	the subject header of the shar
	      files.  See the --net-headers option.

       -s who@where, --submitter=who@where
	      override the submitter name.

	      shar will	normally determine the submitter name by querying the
	      system.  Use this	option if it is	being done on behalf of	an-
	      other.

       -a, --net-headers
	      output Submitted-by: & Archive-name: headers.  This option must
	      appear in	combination with the following options:	archive-name.

	      Adds specialized email headers:
		  Submitted-by:	who@@where
		  Archive-name:	name/part##
	      The who@@where is	normally derived, but can be specified with
	      the --submitter option.  The name	must be	provided with the
	      --archive-name option.  If the archive name includes a slash (/)
	      character, then the /part## is omitted.  Thus -n xyzzy produces:
		  xyzzy/part01
		  xyzzy/part02

	      while -n xyzzy/patch produces:
		  xyzzy/patch01
		  xyzzy/patch02

	      and -n xyzzy/patch01. produces:
		  xyzzy/patch01.01
		  xyzzy/patch01.02

       -c, --cut-mark
	      start the	gshar with a cut line.

	      A	line saying 'Cut here' is placed at the	start of each output
	      file.

       -t, --translate
	      translate	messages in the	script.

	      Translate	messages in the	script.	 If you	have set the LANG en-
	      vironment	variable, messages printed by shar will	be in the
	      specified	language.  The produced	script will still be emitted
	      using messages in	the lingua franca of the computer world: Eng-
	      lish.  This option will cause the	script messages	to appear in
	      the languages specified by the LANG environment variable set
	      when the script is produced.

   Protecting against transmission issues
       --no-character-count
	      do not use `wc -c' to check size.

	      Do NOT check each	file with 'wc -c' after	unpack.	 The default
	      is to check.

       -D, --no-md5-digest
	      do not use md5sum	digest to verify.

	      Do not use md5sum	digest to verify the unpacked files.  The de-
	      fault is to check.

       -F, --force-prefix
	      apply the	prefix character on every line.

	      Forces the prefix	character to be	prepended to every line, even
	      if not required.	This option may	slightly increase the size of
	      the archive, especially if --uuencode or a compression option is
	      used.

       -d delim, --here-delimiter=delim
	      use delim	to delimit the files.  The default delim for this op-
	      tion is:
		   SHAR_EOF

	      Use DELIM	to delimit the files in	the gshar instead of SHAR_EOF.
	      This is for those	who want to personalize	their shar files.  The
	      delimiter	will always be prefixed	and suffixed with underscores.

   Producing different kinds of	shars
       -V, --vanilla-operation
	      produce very simple shars.

	      This option produces vanilla shars which rely only upon the ex-
	      istence of echo, test and	sed in the unpacking environment.

	      It changes the default behavior from mixed mode (--mixed-uuen-
	      code) to text mode (--text-files).  Warnings are produced	if op-
	      tions are	specified that will require decompression or decoding
	      in the unpacking environment.

       -P, --no-piping
	      use temporary files between programs.

	      In the shar file,	use a temporary	file to	hold file contents be-
	      tween unpacking stages instead of	using pipes.  This option is
	      mandatory	when you know the unpacking will happen	on systems
	      that do not support pipes.

       -x, --no-check-existing
	      blindly overwrite	existing files.

	      Create the archive so that when processed	it will	overwrite ex-
	      isting files without checking first.  If neither this option nor
	      the --query-user option is specified, the	unpack will not	over-
	      write pre-existing files.	 In all	cases, however,	if --cut-mark
	      is passed	as a parameter to the script when unpacking, then ex-
	      isting files will	be overwritten unconditionally.

		  sh shar-archive-file -c

       -X, --query-user
	      ask user before overwriting files.  This option must not appear
	      in combination with any of the following options:	vanilla-opera-
	      tion.

	      When unpacking, interactively ask	the user if files should be
	      overwritten.  Do not use for shars submitted to the net.

	      Use of this option produces shars	which will cause problems with
	      some unshar-style	procedures, particularly when used together
	      with vanilla mode	(--vanilla-operation).	Use this feature
	      mainly for archives to be	passed among agreeable parties.	 Cer-
	      tainly, -X is not	for shell archives which are to	be submitted
	      to Usenet	or other public	networks.

	      The problem is that unshar programs or procedures	often feed
	      /bin/sh from its standard	input, thus putting /bin/sh and	the
	      shell archive script in competition for input lines.  As an at-
	      tempt to alleviate this problem, shar will try to	detect if
	      /dev/tty exists at the receiving site and	will use it to read
	      user replies.  But this does not work in all cases, it may hap-
	      pen that the receiving user will have to avoid using unshar pro-
	      grams or procedures, and call /bin/sh directly.  In vanilla
	      mode, using /dev/tty is not even attempted.

       -m, --no-timestamp
	      do not restore modification times.

	      Avoid generating 'touch' commands	to restore the file modifica-
	      tion dates when unpacking	files from the archive.

	      When file	modification times are not preserved, project build
	      programs like "make" will	see built files	older than the files
	      they get built from.  This is why, when this option is not used,
	      a	special	effort is made to restore timestamps.

       -Q, --quiet-unshar
	      avoid verbose messages at	gunshar	time.

	      Verbose OFF.  Disables the inclusion of comments to be output
	      when the archive is unpacked.

       -f, --basename
	      restore in one directory,	despite	hierarchy.

	      Restore by the base file name only, rather than path.  This op-
	      tion causes only file names to be	used, which is useful when
	      building a gshar from several directories, or another directory.
	      Note that	if a directory name is passed to gshar,	the substruc-
	      ture of that directory will be restored whether this option is
	      specified	or not.

   Internationalization	options
       --no-i18n
	      do not internationalize.

	      Do not produce internationalized shell archives, use default
	      English messages.	 By default, gshar produces archives that will
	      try to output messages in	the unpackers preferred	language (as
	      determined by the	LANG/LC_MESSAGES environmental variables) when
	      they are unpacked.  If no	message	file for the unpackers lan-
	      guage is found at	unpack time, messages will be in English.

       --print-text-domain-dir
	      print directory with gshar messages.

	      Prints the directory gshar looks in to find messages files for
	      different	languages, then	immediately exits.

   User	feedback/entertainment
       -q, --quiet
	      do not output verbose messages.

	      omit progress messages.

       --silent
	      This is an alias for the --quiet option.

       -h, --help
	      Display usage information	and exit.

       -!, --more-help
	      Pass the extended	usage information through a pager.

       -R [cfgfile], --save-opts [=cfgfile]
	      Save the option state to cfgfile.	 The default is	the last con-
	      figuration file listed in	the OPTION PRESETS section, below.
	      The command will exit after updating the config file.

       -r cfgfile, --load-opts=cfgfile,	--no-load-opts
	      Load options from	cfgfile.  The no-load-opts form	will disable
	      the loading of earlier config/rc/ini files.  --no-load-opts is
	      handled early, out of order.

       -v [{v|c|n --version [{v|c|n}]}]
	      Output version of	program	and exit.  The default mode is `v', a
	      simple version.  The `c' mode will print copyright information
	      and `n' will print the full copyright notice.

OPTION PRESETS
       Any option that is not marked as	not presettable	may be preset by load-
       ing values from configuration ("RC" or ".INI") file(s).	The file
       "$HOME/.sharrc" will be used, if	present.

WARNINGS
       No attempt is made to restore the protection and	modification dates for
       directories, even if this is done by default for	files.	Thus, if a di-
       rectory is given	to shar, the protection	and modification dates of cor-
       responding unpacked directory may not match those of the	original.

       If a directory is passed	to gshar, it may be scanned more than once, to
       conserve	memory.	 Therefore, do not change the directory	contents while
       gshar is	running.

       Be careful that the output file(s) are not included in the inputs or
       gshar may loop until the	disk fills up.	Be particularly	careful	when a
       directory is passed to gshar that the output files are not in that di-
       rectory or a subdirectory of it.

       Use of the compression and encoding options will	slow the archive
       process,	perhaps	considerably.

       Use of the --query-user produces	shars which will cause problems	with
       many gunshar procedures.	 Use this feature only for archives to be
       passed among agreeable parties.	Certainly, query-user is NOT for shell
       archives	which are to be	distributed across the net.  The use of	com-
       pression	in net shars will cause	you to be flamed off the earth.	 Not
       using the --no-timestamp	or --force-prefix options may also get you oc-
       casional	complaints.  Put these options into your ~/.sharrc file.

FILES
       See OPTION PRESETS for configuration files.

EXAMPLES
       The first shows how to make a shell archive out of all C	program
       sources.	 The second produces a shell archive with all .c and .h	files,
       which unpacks silently.	The third gives	a shell	archive	of all uuen-
       coded .arc files, into numbered files starting from arc.sh.01.  The
       last example gives a shell archive which	will use only the file names
       at unpack time.

	   gshar *.c > cprog.shar
	   gshar -Q *.[ch] > cprog.shar
	   gshar -B -l28 -oarc.sh *.arc
	   gshar -f /lcl/src/u*.c > u.sh

EXIT STATUS
       One of the following exit values	will be	returned:

       0  (EXIT_SUCCESS)
	      Successful program execution.

       1  (EXIT_OPTION_ERROR)
	      The command options were misconfigured.

       2  (EXIT_FILE_NOT_FOUND)
	      a	specified input	could not be found

       3  (EXIT_CANNOT_OPENDIR)
	      open/close of specified directory	failed

       4  (EXIT_FAILED)
	      Resource limit/miscelleaneous gshar command failure

       63  (EXIT_BUG)
	      There is a gshar command bug.  Please report it.

       66  (EX_NOINPUT)
	      A	specified configuration	file could not be loaded.

       70  (EX_SOFTWARE)
	      libopts had an internal operational error.  Please report	it to
	      autogen-users@lists.sourceforge.net.  Thank you.

SEE ALSO
       ungshar(1)

AUTHORS
       The shar	and unshar programs is the collective work of many authors.
       Many people contributed by reporting problems, suggesting various im-
       provements or submitting	actual code.  A	list of	these people is	in the
       THANKS file in the sharutils distribution.

COPYRIGHT
       Copyright (C) 1994-2015 Free Software Foundation, Inc. all rights re-
       served.	This program is	released under the terms of the	GNU General
       Public License, version 3 or later.

BUGS
       Please put sharutils in the subject line	for emailed bug	reports.  It
       helps to	spot the message.

       Please send bug reports to: bug-gnu-utils@gnu.org

NOTES
       This manual page	was AutoGen-erated from	the shar option	definitions.

GNU sharutils (4.15.2)		  30 May 2015			      gshar(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPTION PRESETS | WARNINGS | FILES | EXAMPLES | EXIT STATUS | SEE ALSO | AUTHORS | COPYRIGHT | BUGS | NOTES

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