Shell Programming and Scripting

i store the output of ls in a variable FL

Code:

$FL=`ls`

Code:

$echo $FL
f1.txt f2.txt f3.txt f4.txt f5.txt script.sh script.sh~ test.txt

now if i want to retrive the sub-string "f1.txt" from $FL we were taught that this is what i have to do

Code:

$set $FL
$echo $1
f1.txt

and echo $2 would give f2.txt and so on...

now suppose i would like to retrive the sub-string one by using a loop how would i do that...

Code:

FL=`ls`
CTR=`ls -1 | wc -l`
j=1
for((j=1;j<=$CTR;j++))
do
    set $FL
    echo $j
done

but the output comes out as

Code:

1
2
3
4
5
6
...

its obvious why...i realise that its simply printing the value in variable j...but how do i make it print it like this

Code:

f1.txt
f2.txt
f3.txt
...

for doing that i one should echo $1 first time , echo $2 second time and so on...

but i m all out of ideas of how to do it...

please help...

Code:

for j in $FL
do
    echo $j
done