Useful programmer tips:
How is a #C open() routine used? man open
How is a #Perl open() routine used? perldoc -f open
How is a #Python open() routine used? pydoc open
How is a #Rust std::fs::File::open() routine used? eval 'links $(echo /usr/share/doc/rust/html/'$(echo 'std::fs::File::open' |sed 's/\(.*\)::/\1.html)#method./;s#\(.*\)::#\1/*.#;s#::#/#g')