ls -l dev grep sd

gacanepa@alumno:~$ ls -l /dev | grep sd
lrwxrwxrwx 1 root root           4 Jan 20 23:11 root -> sdb2
brw-rw---- 1 root disk      8,   0 Jan 20 20:11 sda
brw-rw---- 1 root disk      8,   1 Jan 20 23:11 sda1
brw-rw---- 1 root disk      8,   2 Jan 20 20:11 sda2
brw-rw---- 1 root disk      8,   5 Jan 20 23:11 sda5
brw-rw---- 1 root disk      8,  16 Jan 20 23:11 sdb
brw-rw---- 1 root disk      8,  17 Jan 20 23:11 sdb1
brw-rw---- 1 root disk      8,  18 Jan 20 23:11 sdb2
brw-rw---- 1 root floppy    8,  32 Jan 20 23:11 sdc
brw-rw---- 1 root floppy    8,  33 Jan 20 23:11 sdc1
brw-rw---- 1 root floppy    8,  48 Jan 20 23:11 sdd
brw-rw---- 1 root floppy    8,  49 Jan 20 23:11 sdd1