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SHRINKFILE(1)		    General Commands Manual		 SHRINKFILE(1)

NAME
       shrinkfile - shrink a file on a line boundary

SYNOPSIS
       shrinkfile [ -n ] [ -m maxsize ]	[ -s size ] [ -v ] file...

DESCRIPTION
       The  shrinkfile	program	 shrinks  files	to a given size	if the size is
       larger than maxsize, preserving the data	at the end of the file.	 Trun-
       cation  is  performed  on  line boundaries, where a line	is a series of
       bytes ending with a newline, ``\n''.  There is no line length  restric-
       tion and	files may contain any binary data.

       Temporary  files	 are  created  in the _pathtmp in inn.conf_ directory.
       The ``TMPDIR'' environment variable may be used to specify a  different
       directory.

       A  newline will be added	to any non-empty file that does	not end	with a
       newline.	 The maximum file size will not	be exceeded by this addition.

OPTIONS
       -s     By default, size is assumed to be	zero and files	are  truncated
	      to  zero	bytes.	 By  default, maxsize is the same as size.  If
	      maxsize is less than size, maxsize is reset to size.  The	``-s''
	      flag  may	 be  used  to change the truncation size.  Because the
	      program truncates	only on	line boundaries, the final size	may be
	      smaller  then  the specified truncation size.  The size and max-
	      size parameter may end with a ``k'', ``m'', or ``g'', indicating
	      kilobyte	(1024),	 megabyte  (1048576)  or gigabyte (1073741824)
	      lengths.	Uppercase letters are also allowed.  The maximum  file
	      size is 2147483647 bytes.

       -v     If  the ``-v'' flag is used, then	shrinkfile will	print a	status
	      line if a	file was shrunk.

       -n     If the ``-n'' flag is used, then shrinkfile will exit 0  if  any
	      file is larger than maxsize and exit 1 otherwise.	 No files will
	      be altered.

EXAMPLES
       Example usage:

	      shrinkfile -s 4m curds
	      shrinkfile -s 1g -v whey
	      shrinkfile -s 500k -m 4m -v curds	whey
	      if shrinkfile -n -s 100m whey; then echo whey is way too big; fi

HISTORY
       Written	by  Landon  Curt  Noll	 <chongo@toad.com>   and   Rich	  $alz
       <rsalz@uunet.uu.net> for	InterNetNews.

SEE ALSO
       inn.conf(5)

								 SHRINKFILE(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | HISTORY | SEE ALSO

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