truncate - shrink or extend the size of a file to the specified size
truncate OPTION... FILE...
TRUNCATE(1) User Commands TRUNCATE(1) NAME truncate - shrink or extend the size of a file to the specified 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, ... (pow- ers 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: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> 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 redistribute 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 Texinfo 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/core- utils-8.16.tar.xz Further information about this software can be found on the open source community website at http://www.gnu.org/software/coreutils/. GNU coreutils 8.16 March 2012 TRUNCATE(1)