SHRINKFILE(1)SHRINKFILE(1)NAMEshrinkfile - shrink a file on a line boundary
SYNOPSISshrinkfile [ -s size ] [ -v ] file...
The shrinkfile program shrinks files to a given size, preserving the
data at the end of the file. Truncation is performed on line bound‐
aries, 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
Temporary files are created in the /tmp 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.
By default, files are truncated to zero bytes. The ``-s'' flag may be
used to change the maximum size. Because the program truncates only on
line boundaries, the final size may be may be smaller then the speci‐
fied maximum. The 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.
If the ``-v'' flag is used, then shrinkfile will print a status line if
a file was shrunk.
Written by Landon Curt Noll <firstname.lastname@example.org> and Rich $alz
<email@example.com> for InterNetNews.