SHELL

bash for loop multiple statements

# 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

bash two for loops

for i in 0 1 2 3 4 5 6 7 8 9
do
    for j in 0 1 2 3 4 5 6 7 8 9
    do 
        echo "$i$j"
    done
done