urgent help required

Thu Aug 30 04:10:01 PDT 2012

I m using hal utilinity on my linux (RHEL 5.5) to find the number of USB
devices connected to system

my problem is that when I connect two usb pen drive it shows correctly

now at run time when I unplug one of pen drive and re- run my script it
still shows two pen drive

ideally it shoud show only one after unplug.

I have write following script

for udi in $(/usr/bin/hal-find-by-capability --capability storage)
 do
        device=$(hal-get-property --udi $udi --key block.device)
        vendor=$(hal-get-property --udi $udi --key storage.vendor)
        model=$(hal-get-property --udi $udi --key storage.model)
        echo "udi=$udi ** device=$device ** vendor=$vendor ** model=$model"
        if [[ $(hal-get-property --udi $udi --key storage.bus) = "usb" ]]
        then
          parent_udi=$(hal-find-by-property --key block.storage_device
--string $udi)
          mount=$(hal-get-property --udi $parent_udi --key
volume.mount_point)
          echo "mount = $mount"
          label=$(hal-get-property --udi $parent_udi --key volume.label)
          media_size=$(hal-get-property --udi $udi --key
storage.removable.media_size)
          size=$(( ceil(media_size/(1024*1024*1024)) ))
          line="$vendor  $model  $device $label "${size}GB""
      fi
 done

your help will be highly appreciated.

Regards,
Amit

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