confirm "Clean project and outputs for exam '$exam' ?"
if[$? -eq 0 ]; then return 0; fi
for dir in $(echo$DIR_WORKSPACE/$DIR_PROJECTS$DIR_WORKSPACE/$DIR_SAMPLES$DIR_WORKSPACE/$DIR_BLANKS$DIR_WORKSPACE/$DIR_PDFS$DIR_WORKSPACE/$DIR_LISTS$DIR_WORKSPACE/$DIR_CATALOGS$DIR_WORKSPACE/$DIR_PDFS); do
if[$? -ne 0 ]; then error "This template's build script ($DIR_EXAM_TEMPLATE/$FILE_PROJECT_BUILD) is not valid (no 'build_project' function)." ; return 1; fi
# Good. Proceed.
verbose "Building projects using script '$DIR_EXAM_TEMPLATE/$FILE_PROJECT_BUILD'"