Array Iteration: Loop Through Arrays

Iterate through arrays. Process each element. Common pattern.

Here's the thing: Array iteration is common. Learn the patterns. Use them.

Basic Iteration

fruits=("apple" "banana" "orange")
for fruit in "${fruits[@]}"; do
    echo "$fruit"
done

My take: ${array[@]} gets all elements. Use it.

fruits=("apple" "banana" "orange")
for i in "${!fruits[@]}"; do
    echo "$i: ${fruits[$i]}"
done

My take: ${!array[@]} gets indices. Use it.

files=("file1.txt" "file2.txt")
for file in "${files[@]}"; do
    process "$file"
done

Now that you understand iteration, you can work with arrays. Or review Arrays to reinforce.

Personal note: Array iteration seemed complex. Then I learned the patterns. Now I use them constantly. They're essential. Learn them.