Provided by: inn2_2.6.0-2_amd64 
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) SHRINKFILE(1)