This post demonstrates bash mount
to create a temporarily ramdisk
Create a ramdisk directory using 2G of RAM and mount it to a new directory
#!/bin/bash
sudo mkdir /ramdisk
sudo chmod 777 /ramdisk
sudo mount -t tmpfs -o size=2G tmpfs /ramdisk
Warning:
Be careful, data copied into the ramdisk are not permanent and lost if you shut down your computer !