[-d"${SOURCE}"]|| die "SOURCE_DIRECTORY must be a directory (containing 1 .tei file per tome)"
[-d"${SOURCE}"]|| die "SOURCE_DIRECTORY must be a directory (containing a folder for EDdA and one for LGE with the structure found in Source.squashfs)"
[-d"${TARGET}"]|| die "TARGET_DIRECTORY must be a directory (where output will be generated)"
fi
FILES_TSV="${TARGET}/files.tsv"
printf"book tome rank headWord name page\n">"${FILES_TSV}"