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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.  Truncation is
  performed on line boundaries, where a line is a series of bytes ending with
  a newline, ``\n''.  There is no line length restriction 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 maxsize 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)

Index for Section 1

Alphabetical listing for S

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