уменьшить или увеличить размер файла до указанного размера (shrink or extend the size of a file to the specified size)
Имя (Name)
truncate - shrink or extend the size of a file to the specified
size
Синопсис (Synopsis)
truncate OPTION... FILE...
Описание (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 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 (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.
