Before doing the following exercises, Chic should have been properly
installed. You also need to make a private copy of the directory
$CHIC_DIR/doc/exercises including its
subdirectories. You can for example do this with:
cp -R $CHIC_DIR/doc/exercises .
The exercises directory contains the subdirectories e1,
e2, etc. For each exercise you should first go to the
corresponding directory (e.g. cd ~/exercises/e1).