ubuntu@ubuntu:/media$ sudo blkid
/dev/loop0: TYPE="squashfs" 
/dev/sda1: UUID="2FD3-1B89" TYPE="vfat" 
/dev/sdb1: LABEL="System Reserved" UUID="10C62B95C62B79DC" TYPE="ntfs" 
/dev/sdb2: UUID="D0ACEEBEACEE9E6A" TYPE="ntfs" 
/dev/sdb5: UUID="8842230d-31cc-48c8-9df3-27705abc8a3b" TYPE="ext4" 
/dev/sdb6: UUID="ab940b97-f463-4a4a-818e-76e432f2c340" TYPE="swap" 
/dev/sdc1: LABEL="HITACHI" UUID="3BC3-1A07" TYPE="vfat" 
ubuntu@ubuntu:/media$ cd
ubuntu@ubuntu:~$ pwd
/home/ubuntu
ubuntu@ubuntu:~$ sudo lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    1     2G  0 disk 
└─sda1   8:1    1     2G  0 part /cdrom
sdb      8:16   0 465.8G  0 disk 
├─sdb1   8:17   0   100M  0 part 
├─sdb2   8:18   0 194.6G  0 part /media/ubuntu/D0ACEEBEACEE9E6A
├─sdb3   8:19   0     1K  0 part 
├─sdb5   8:21   0 255.1G  0 part /media/ubuntu/8842230d-31cc-48c8-9df3-27705abc8
└─sdb6   8:22   0  15.9G  0 part 
sdc      8:32   0 931.5G  0 disk 
└─sdc1   8:33   0 931.5G  0 part /media/ubuntu/HITACHI
loop0    7:0    0 962.1M  1 loop /rofs
ubuntu@ubuntu:~$ echo $UID
999
ubuntu@ubuntu:~$