echo "Creating cal-file..."
echo > cal.txt
for ((y=1900; y <= 2100; y++)); do
for ((m=1; m <= 12; m++)); do
#echo $m $y
cal -m $m $y >> cal.txt
done
ls -la cal.txt
echo "Looking for month with 5 weekends:"
awk -f 5weekends.awk cal.txt