I was actually trying to update my python package to current version using update-alternatives. Since am not much familiar with it, I tried to get it done by watching YouTube videos. from one of such videos I unfortunately gave the command sudo unlink /usr/bin/python which soon after made terminal and software updater not working. and also when I tried to install some new soft wares via terminal at end of the process it shows like
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
I need to get back everything to be normal! help me please!