Sed (Stream EDitor) is a very practical and fun Turing-Complete esoteric language mostly used for text manipulations.
We'll use GNU Sed with all GNU extensions and ERE (Extended Regular Expression) in this track.
Testing will be done with bats-core
from the Bash Track.
Get help on the Exercism forum.
Please see the CONTRIBUTING.md document for details about adding concepts, learning exercises and practice exercises.