truncate - shrink or extend the size of a file to the specified size

       Written by Padraig Brady.

       Copyright  ©  2024  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.

       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 sparse 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,R,Q  (powers  of  1024) or KB,MB,... (powers of 1000).  Binary prefixes can be used, too:
       KiB=K, MiB=M, and so on.

       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.

       truncate - shrink or extend the size of a file to the specified size

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

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

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

GNU coreutils 9.5                                  April 2025                                        TRUNCATE(1)

truncateOPTION... FILE...