command: badblocks
usage: It is used to check for bad sectors on a disk drive
examples:
1. for options and info
$ man badblocks
2. To check for badblocks on a specific partition sda6
# badblocks /dev/sda6
if there are no badblocks it will not show any output on the screen
use this command on a unmounted partition and as a root
3. To display what is and how much it has scanned
# badblocks -v /dev/sda6
4. To specify a blocksize
# badblocks -v -b 2048 /dev/sda6
by default badblocks command use 1024 as block size
5. To customize the check of badblocks for a size of 200 badblocks
# badblocks -v -e 200 /dev/sda6
otherwise badblocks command will keep on till the test is finished
6. To make the badblocks output to a log file
# badblocks -v -o badsectors.log /dev/sda6
regards,
dhanasekar
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