Install ash by entering the following commands in the terminal:
sudo apt update sudo apt install ash
Description:
compatibility package for dash
This package allows upgrading ash to its replacement, dash. It includes the /bin/ash symlink. It can be removed as soon as /bin/ash is no longer used.
Homepage: http://gondor.apana.org.au/~herbert/dash/
Version: 0.5.8-2.10
Section: universe/shells