Re: USB via ethernet

[Stephen Samuel <samnospam@bcgreen.com>]

Stephen Liu wrote:

> Hi Jody
>
>  
>
> > modprobe usbnet # insert usbnet module (USB via ethernet)
> >
> > pump -i # DHCP request, -i option to precise which interface to use
> >
> > `dmesg | grep CDC | awk -F: ‘{ print $1; }’` # look in dmesg output
> > in order to find ethernet interface information (eth1 for example)
> >    
>
> If I understand it correctly, it should be one command line;
>
> # modprobe usbnet \
>  pump -i \
>  `dmesg | grep CDC | awk -F: ‘{ print $1; }’`
>  
No. It's two command lines:

modprobe usbnet &&
(( runs the modprobe command, and only runs the next command if the 
modprobe succeeds))
pump -i ` dmesg | awk -F: '/CDC/{print $1;}' `

this runs pump with (hopefully) two parameters.
The first is '-i'
The second is the output of dmesg | awk -F: '/CDC/{print $1;}'

Note that I've changed it from grep CDC | awk -F: ....
to awk -F: '/CDC/.....'

awk allows filtering of which lines to work on, and /CDC/ says to
only work on lines that match the Regex 'CDC' (i.e. same as doing the grep).

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Stephen Samuel +1(604)450-0066             samnospam@bcgreen.com
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