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646
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 [ 33.854905] usb-storage 1-1.2:1.0: USB Mass Storage device detected
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6 [ 33.854946] scsi6 : usb-storage 1-1.2:1.0
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7 [ 33.855002] usbcore: registered new interface driver usb-storage
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8 [ 34.855894] scsi 6:0:0:0: Direct-Access PNY USB 2.0 FD 8.07 PQ: 0 ANSI: 4
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9 [ 34.856108] sd 6:0:0:0: Attached scsi generic sg2 type 0
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10 [ 34.857281] sd 6:0:0:0: [sdb] 249999360 512-byte logical blocks: (127 GB/119 GiB)
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11 [ 34.858452] sd 6:0:0:0: [sdb] Write Protect is off
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12 [ 34.858455] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00
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13 [ 34.859678] sd 6:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
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14 [ 40.782414] sdb: sdb1
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15 [ 40.787010] sd 6:0:0:0: [sdb] Attached SCSI removable disk
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16
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17 """
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18
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19 import argparse
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20 import os
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21 import subprocess
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22 import sys
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23
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24 string = (str, unicode)
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25
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26 def main(args=sys.argv[1:]):
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27
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28 parser = argparse.ArgumentParser(description=__doc__)
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29 options = parser.parse_args(args)
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30
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31 dmesg = subprocess.check_output(['dmesg']).splitlines()
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32 string = 'usbcore: registered new interface driver usb-storage'
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33 for index in reversed(range(len(dmesg))):
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34 line = dmesg[index]
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35 if string in line:
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36 break
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37 else:
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38 sys.exit(1) # nothing found
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39
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40 for line in dmesg[index:]:
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41 line = line.split(']', 1)[-1].strip()
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42 if ':' in line:
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43 try:
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44 disk, partition = line.split(':')
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45 except ValueError:
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46 continue
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47 disk = disk.strip()
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48 partition = partition.strip()
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49 if partition.startswith(disk):
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50 print (partition)
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51 sys.exit(0)
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52
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53 if __name__ == '__main__':
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54 main()
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