• Starting an interactive shell
• Running a script
• Running from command line
• Tuples/lists/vectors
• Dictionaries (Python)/ lists (R)
• Filtering
• Functions
• Getting help
• Pitfalls that surprise
• Profiling memory and CPU time

Running from command line

$ python -c "print('hello from Python')"

hello from Python

$ R --quiet -e "print('hello from R')"

> print('hello from R')
[1] "hello from R"