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For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
detecting drives

Posted by sasi (sasi), 19 July 2003
I am trying to write a small Perl script which can detect
IDE, SCSI, USB drives. Could anyone please help me with this?

Thanks  a lot

Posted by admin (Graham Ellis), 20 July 2003
I've done something similar to detect graphics boards; this is very operating system dependent - I was using Solaris at the time, and had a script that was looking in the /dev and /devices directory  (Background - as support specialist for an add on board supplier, I needed to be able to check whether a non-working installation wasn't working because of badly or un-installed drivers, or simplyu because the box couldn't see the hardware!).

As well as /dev and friends, you might want to read up about the -b operator which is used to test whether a named file is a block special device.

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