lsusb (in a terminal) will list any USB device connected to the computer.
You can use the mount and umount commands for just about any storage device, including loop devices that are connected to a physical or virtual storage devices (i.e. a filesystem within a file).
sudo fdisk -l (fdisk must be run as supper-user, hence, sudo).lsusb to list USB devices.
LVM is a logical volume manager for the Linux kernel; it manages disk drives and similar mass-storage devices.
utilities is nothing but predefined commands in linux
use 'ifconfig -a '
Innumerable. Remember that any program on Linux can be launched from the command line, so there are as many commands as there are programs.
ls
ifconfig -a
There are no standardized commands for backing up a Linux system. Backup methods can range from dd to RAID to one of various backup utilities.
Yes. Just about everything to do with Linux on the command line is case sensitive, including commands and file names.
Oracle 10g's commands are internal; they have nothing to do with what platform it is running on.
There is none. For starters, you have it backwards, DOS actually copied most of its commands from Unix (The rest came from CP/M.), which Linux is inspired by. Commands like "cd" and "dir" were Unix commands long before DOS even existed.