怎么用DD命令创建个1G又1byte的文件？

[EastAnt]

求助，怎么用DD命令创建个1G又1byte的文件？
谢谢~

[lxd]

dd if=/dev/zero of=xxxxxx count=1 bs=`expr 1024 \* 1024 \* 1024 + 1`

2011/10/13 EastAnt <ray.zh...@gmail.com>

求助，怎么用DD命令创建个1G又1byte的文件？
谢谢~

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[Tang Daogang]

dd if=/dev/zero of=1.img bs=1 count=1073741825
记录了1073741825+0 的读入
记录了1073741825+0 的写出
1073741825字节(1.1 GB)已复制，3564.11 秒，301 kB/秒

够慢的。

2011/10/13 EastAnt <ray.zh...@gmail.com>

求助，怎么用DD命令创建个1G又1byte的文件？
谢谢~

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You received this message because you are subscribed to the Google Groups "Chengdu Linux User Group" group.
To post to this group, send email to cdlug_c...@googlegroups.com.
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Nothing is impossible.

[lxd]

你把参数值掉过来了当然慢了……

dd if=/dev/zero of=xxxxxx count=1 bs=`expr 1024 \* 1024 \* 1024 + 1`

1+0 records in
1+0 records out
1073741825 bytes (1.1 GB) copied, 34.5489 s, 31.1 MB/s

2011/10/13 Tang Daogang <daoga...@gmail.com>

[EastAnt]

3Q

On Oct 13, 4:31 pm, lxd <edl.e...@gmail.com> wrote:
> 你把参数值掉过来了当然慢了......

> dd if=/dev/zero of=xxxxxx count=1 bs=`expr 1024 \* 1024 \* 1024 + 1`
> 1+0 records in
> 1+0 records out
> 1073741825 bytes (1.1 GB) copied, 34.5489 s, 31.1 MB/s
>

> 2011/10/13 Tang Daogang <daogangt...@gmail.com>

>
>
>
>
>
>
>
> > dd if=/dev/zero of=1.img bs=1 count=1073741825
> > 记录了1073741825+0 的读入
> > 记录了1073741825+0 的写出
> > 1073741825字节(1.1 GB)已复制，3564.11 秒，301 kB/秒
>
> > 够慢的。
>

> > 2011/10/13 EastAnt <ray.zheng...@gmail.com>