In this directory, you should write the program wcat.c and compile it into
the binary wcat.
After doing so, you can run the tests from this directory by running the
test-wcat.sh script. If all goes well, you will see:
prompt> ./test-wcat.sh
test 1: passed
test 2: passed
test 3: passed
test 4: passed
test 5: passed
test 6: passed
test 7: passed
prompt>
test-wcat.sh is just a wrapper for the run-tests.sh script in the tester
directory of this repository. This program has a few options; see the relevant
README for details.