object-oriented shell for linux? [closed]
Python. No joking.
Scripting languages are scripting languages, and Python is a particularly nice one that many people find very approachable.
Even though this question is pretty old, I think its worth mentioning that in August 2016 Microsoft made Powershell open-source and cross platform. Instructions for installation are on github.
Perl, Python, and Ruby
Ok, I'm sure you already know that, but someone had to say it.
Perl is the oldest and most popular.
If you like objects, you will probably love Ruby. It has an elaborate object system inspired by Smalltalk.
Python has this cool block-structure-by-indent syntax.
Unix is a gold mine of advanced scripting tools...