Creating data of size

Hello,

I need to create 100kb,1000kb,10000kb etc files of no particular substance but I need them a exact size.

I think they are .dat's I need but im unsure of the command I issue to create them

Any help appreciated :slight_smile:

Mr Pink

find first 100kb file and then "man dd"

You could use dd to create the 100k file by sourcing /dev/urandom

use mkfile. gets you exacts.

mkfile
Usage: mkfile [-nv] <size>[g|k|b|m] <name1> [<name2>] ...

ex:

mkfile 1024m testfile

exact.

-S

Hi:
There's a little known device called /dev/zero which can quickly create a file of known size. This command:

dd if=/dev/zero of=myfile bs=1024 count=10

creates file "myfile" filled with zeros with a block size of 1000 muliplied 10 tens or 10K.