the method by manipulating the /etc/fstab table is system wide mounting, but for a user specific mount on command line, we can use the udisks cmd
first find partitions by

sudo fdisk -l
then use

/usr/bin/udisks --mount /dev/sda2 or anything
we can also use UUID
for this method , first find UUID by
ls -l /dev/disk/by-uuid/
then use this cmd

/usr/bin/udisks --mount /dev/disk/by-uuid/----