truncate(1) - phpMan

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 bytes

       --help display this help and exit

       --version
              output version information and exit

       The SIZE argument is an integer and optional unit (example: 10K is  10*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  mul-
       tiple of.

AUTHOR
       Written by Padraig Brady.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report truncate translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  (C)  2018  Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or
       later <https://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.

SEE ALSO
       dd(1), truncate(2), ftruncate(2)

       Full documentation at: <https://www.gnu.org/software/coreutils/truncate>
       or available locally via: info '(coreutils) truncate invocation'

GNU coreutils 8.30                        September 2019                              TRUNCATE(1)

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