D&C

wget -w 0.1 --random-wait -r -nc --no-parent -l inf -i dc-list -o dc-log --reject-regex "[0-9]+."

Rest of scriptures

wget -w 0.5 --random-wait -r -nc --no-parent -l inf -i scriptures-list -o scriptures-log

Rename without '?lang=eng'

find . -iname '?' | xargs -I % sh -c 'newname=$(echo % | sed "s/(^.)(?.)/\1/"); mv % $newname'