# Compute sum of a list of numbers from command line
sum=0
for n in "$@" # use "$@" to preserve args
do
sum=`expr $sum + "$n"`
done
# Process files in $PWD, asking for confirmation
for file in *
do
echo -n "Process $file? "
read answer
case "$answer" in
[yY]*) process < $file > results ;;
*) ;;
esac
done
|