# Basic syntax:
for i in a b; do echo $i; printf "$i $i
"; done
# Where:
# - each command in the for loop needs to be separated by semicolons. Here
# we echo $i and then print $i<tab>$i<newline>
# - over several lines this would be equivalent to:
for i in a b
do
echo $i
printf "$i $i
"
done