You are administrator of Certpaper network. First time you are going to take the full backup of all
user’s home directory. Take the full backup of /home on /tmp/back file.
1. dump -0u -f /tmp/back /dev/hda4
dump is the standard backup utility. According to the questions, fullback should take. -0 means
fullback, -u means update the /etc/dumpdates which maintains the backup record and -f means
filename. If you are directly taking backup into other device, you can specify the device name.
i.e dump -0u -f /dev/st0 /dev/hda4. Where hda4 is a separate partition mounted on /home.