for file in bib book1 book2 geo news obj1 obj2 paper1 paper2 paper3 paper4 \
paper5 paper6 pic progc progl progp trans; do
echo "===================================="
for file in bib book1 book2 geo news obj1 obj2 paper1 paper2 paper3 paper4 \
paper5 paper6 pic progc progl progp trans; do
echo "===================================="