Sandboxie and Shadow defender equivalents for Linux?

I just got onto Linux Mint and I love it! So user friendly. However, I need equivalents for sandboxie and shadow defender. Something that will only write to RAM for that session.

Does Deep Freeze do this? I don't think it does.

Also, does virtual box only write to RAM?

The point is for the pc not to remeber everything, not for malware prevention.
It seems I am just as secure with windows 7, sandboxie and SD, but I really love Mint.

 

Deep Freeze does virtualize your system like Shadow Defender. VirtualBox runs another OS on top of Mint. Although its snapshots feature may be what you're looking for, it's dealing with a different system (VDI) within yours. Probably too resource-heavy for your needs.

For a freeware Linux equivalent, Lethe, Ofris, and fsprotect are a possibilities. Alternatively you can learn LVM snapshots or disk imaging

 

Thanks for the Info.