GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.8(Squeeze) |
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truncate(1) |
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truncate − shrink or extend the size of a file to the specified size
truncate OPTION... FILE...
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=FILE
use this FILE’s size
−s, −−size=SIZE
use this SIZE
|
−−help |
display this help and exit |
−−version
output version information and exit
SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.
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.
Note that the −r and −s options are mutually exclusive.
Written by Padraig Brady.
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://translationproject.org/team/>
Copyright
© 2010 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.
dd(1), truncate(2), ftruncate(2)
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.
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truncate(1) | |