Linux You have a fairly complex system running. You have 4 hard drives and 3 USB

Question

Linux

You have a fairly complex system running. You have 4 hard drives and 3 USB drives connected. You have identified a freshly purchased USB drive connected to the system as drive sdh. Write the command to effectively wipe the contents of the new USB drive. Write it with random data 0 times. Have the command send the progress to the screen. Be sure the command makes a final pass writing a zero in all locations. You have identified a used USB drive connected to the system as drive sdb. Write the command to effectively wipe the contents of the USB drive. Write it with random data 6 times. Have the command send the progress to the screen. Be sure the command makes a final pass writing a zero in all locations.

Explanation / Answer

1. The command dd is used to destroy the data without destroying the drive, it has two special device files as /dev/zero and /dev/urandom ,  the command used to wipe the data from a new USB drive located at sdh and to write the random data 0 times , and zero is written in all locations is given as,

2. The command to wipe the contents of a drive located at sdb and to write random data , the /dd/urandom command is used to generate random numbers in drive

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