[LAD] [OT] bash vs disk activity

Marc-Olivier Barre mobarre at gmail.com
Tue Oct 9 13:02:18 UTC 2007

On 10/9/07, Patrick Shirkey <pshirkey at boosthardware.com> wrote:
> Hi,
> Does anyone here have a bash script that will monitor disk activity or
> accurately provide a progress bar of a simple file copy?
> I have a script that transfers data to a usb device using
> cp -a /xxx /usb_device &
> But it falls over with reporting back the actual amount of data that has
> been transferred. It seems that the copy command doesn't return the
> actual amount transferred to disk but more the amount it has queued to
> transfer.
> For example if I transfer 200mb to a usb disk the copy command takes
> about 30 seconds before it returns and the data takes about 5 minutes
> before it is actually finished being transferred and the device is
> unmountable.
> How would I track the 5 minutes of data transfer with bash?


AFAIK I don't see how you could do that with anything than a low-level
API, let alone bash... Although I may be wrong... Surprise me !

Marc-Olivier Barre,

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