Install xotcl-shells by entering the following commands in the terminal:
sudo apt update sudo apt install xotcl-shells
Description:
Extended Object Tcl (XOTcl): Object orientation for Tcl - shells
This package provides you with two Tcl/Tk shell wrappers, xotclsh and xowish. These shells offer ready-made environments for XOTcl-empowered scripting.
Homepage: http://www.xotcl.org/
Version: 1.6.8-3
Section: universe/utils