On Tue 27 Jan 2009, David de Lama wrote:
> Then I wanted to overwrite 25 blocks:
> dd bs=1M if=/dev/urandom of=/home/test.xyz seek=50 count=25
>
> But when I look at the file, its size is now 76.8MB! So all the Blocks after
> block 75 are deleted! :(
> Need help, please!
Try the dd manpage, which mentions:
conv=CONVS
convert the file as per the comma separated symbol list
...
Each CONV symbol may be:
...
notrunc
do not truncate the output file
Hence try adding conv=notrunc
Paul Slootman
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