1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35.
2 .TH TRUNCATE "1" "March 2012" "GNU coreutils 8.16" "User Commands"
4 truncate \- shrink or extend the size of a file to the specified size
7 \fIOPTION\fR... \fIFILE\fR...
9 .\" Add any additional description here
11 Shrink or extend the size of each FILE to the specified size
13 A FILE argument that does not exist is created.
15 If a FILE is larger than the specified size, the extra data is lost.
16 If a FILE is shorter, it is extended and the extended part (hole)
19 Mandatory arguments to long options are mandatory for short options too.
21 \fB\-c\fR, \fB\-\-no\-create\fR
22 do not create any files
24 \fB\-o\fR, \fB\-\-io\-blocks\fR
25 treat SIZE as number of IO blocks instead of bytes
27 \fB\-r\fR, \fB\-\-reference\fR=\fIRFILE\fR
30 \fB\-s\fR, \fB\-\-size\fR=\fISIZE\fR
31 set or adjust the file size by SIZE
34 display this help and exit
37 output version information and exit
39 SIZE is an integer and optional unit (example: 10M is 10*1024*1024). Units
40 are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ... (powers of 1000).
42 SIZE may also be prefixed by one of the following modifying characters:
43 \&'+' extend by, '\-' reduce by, '<' at most, '>' at least,
44 \&'/' round down to multiple of, '%' round up to multiple of.
46 Written by Padraig Brady.
48 Report truncate bugs to bug\-coreutils@gnu.org
50 GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
52 General help using GNU software: <http://www.gnu.org/gethelp/>
54 Report truncate translation bugs to <http://translationproject.org/team/>
56 Copyright \(co 2012 Free Software Foundation, Inc.
57 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
59 This is free software: you are free to change and redistribute it.
60 There is NO WARRANTY, to the extent permitted by law.
62 dd(1), truncate(2), ftruncate(2)
64 The full documentation for
66 is maintained as a Texinfo manual. If the
70 programs are properly installed at your site, the command
72 .B info coreutils \(aqtruncate invocation\(aq
74 should give you access to the complete manual.