Batch convert (decode) audio into multiple formats with ffmpeg

I have a directory with a bunch of CD quality (16bit 44100Hz) wave-files. How can I batch decode those into different formats (lets say FLAC, OGG and MP3) using ffmpeg? ---------- **Update:** here are the commands one by one as suggested by @StephenHarris ffmpeg -i input.wav output.ogg ffmpeg -i input.wav output.mp3 ffmpeg -i input.wav output.flac