> On 2012-07-17 04:47, Invisible wrote:
>>>> dmesg | egrep '(s|h)d[a-z]'
>>>
>>> If you want to build your straw man, at least use examples that conform
>>> to your straw man. That's a bad example because it can be understood in
>>> about 2 seconds.
>>
>> OK, so what does it do?
>>
>> Clearly it runs dmesg and searches the output for some search term. But
>> what is the search term?
>
> *I'LL* handle this one! Wa ha.
>
> It's looking for one of the following:
> ada adb adc ... adx ady adz
> hda hdb hdc ... hdx hdy hdz
>
> ...I think.

Yep, but you have a typo in your answer.

Basically, it parses the output of the dmesg command looking for lines 
that talk about hard disks (hda-hdz for IDE/SATA and sda-sdz for SCSI)

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