The Debian Almquist Shell (dash) is a POSIX-compliant shell derived
from ash.
Since it executes scripts faster than bash, and has fewer library
dependencies (making it more robust against software or hardware
failures), it is used as the default system shell on Debian systems.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
Snap can be installed on Pop!_OS from the command line. Open Terminal from the Applications launcher and type the following:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install dash
To install dash, simply use the following command: