commandline session
$ 4.2.20 2 84---> dd if=/dev/pts of=stdout dd: reading `/dev/pts': Is a directory 0+0 records in 0+0 records out 0 bytes (0 B) copied, 0.001431 s, 0.0 kB/s $ 4.2.20 3 85---> dd if=/dev/sda sda sda1 sda2 sda5 $ 4.2.20 3 85---> dd if=/dev/sda1 of=/dev/sda sda sda1 sda2 sda5 $ 4.2.20 3 85---> dd if=/dev/sda1 of=/dev/sda sda sda1 sda2 sda5 $ 4.2.20 3 85---> dd if=/dev/sda1 of=/dev/sdb dd: opening `/dev/sda1': Permission denied $ 4.2.20 4 86---> sudo dd if=/dev/sda1 of=/dev/sdb [sudo] password for jeffrin: ^C1416945+0 records in 1416944+0 records out 725475328 bytes (725 MB) copied, 18.526 s, 39.2 MB/s $ 4.2.20 5 87--->