SHRINKFILE(1)               General Commands Manual              SHRINKFILE(1)

       shrinkfile - shrink a file on a line boundary

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

       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

       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.

       -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.

       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

       Written  by  Landon  Curt  Noll   <>   and   Rich   $alz
       <> for InterNetNews.



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