truncate
(1)
Name
truncate - fied size
Synopsis
truncate OPTION... FILE...
Description
User Commands TRUNCATE(1)
NAME
truncate - shrink or extend the size of a file to the speci-
fied size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data
is lost. If a FILE is shorter, it is extended and the
extended part (hole) reads as zero bytes.
Mandatory arguments to long options are mandatory for short
options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE
--help
display this help and exit
--version
output version information and exit
SIZE is an integer and optional unit (example: 10M is
10*1024*1024). Units are K, M, G, T, P, E, Z, Y (powers of
1024) or KB, MB, ... (powers of 1000).
SIZE may also be prefixed by one of the following modifying
characters: '+' extend by, '-' reduce by, '<' at most, '>'
at least, '/' round down to multiple of, '%' round up to
multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
Report truncate bugs to bug-coreutils@gnu.org
GNU coreutils home page:
GNU coreutils 8.16 Last change: March 2012 1
User Commands TRUNCATE(1)
<http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/geth-
elp/>
Report truncate translation bugs to <http://translationpro-
ject.org/team/>
COPYRIGHT
Copyright (C) 2012 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redis-
tribute it. There is NO WARRANTY, to the extent permitted
by law.
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+--------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------+
|Availability | file/gnu-coreutils |
+---------------+--------------------+
|Stability | Uncommitted |
+---------------+--------------------+
SEE ALSO
dd(1), truncate(3C), ftruncate(3C)
The full documentation for truncate is maintained as a Tex-
info manual. If the info and truncate programs are properly
installed at your site, the command
info coreutils 'truncate invocation'
should give you access to the complete manual.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://ftp.gnu.org/gnu/coreutils/coreutils-8.16.tar.xz
Further information about this software can be found on the
open source community website at http://www.gnu.org/soft-
ware/coreutils/.
GNU coreutils 8.16 Last change: March 2012 2