How do I read one character from stdin? (getc in C)

[Fer22f via Digitalmars-d-learn]

Hello! I'm starting to make some simple command line programs and 
one thing I miss from C is a function for getting one character 
from the input. This is for example, an "Press Any Key Program".

Anyone that has more experience can point me into a solution that 
is not deprecated? I haven't even researched about the deprecated 
options but looked into all free available D books I could find 
and I only found ways to get entire lines (even if it's just one 
character I still need to press enter).