Iterating Over Data in Bash Scripts

Discover diverse examples of for loops in Bash scripts, showcasing different techniques for iterating over data. From numeric ranges to arrays, file contents, command output, and glob patterns, these examples demonstrate the versatility of for loops in processing data efficiently.

Whether you're automating tasks or enhancing script functionality, these examples offer valuable insights for leveraging for loops effectively in your Bash scripts.

for i in $( whoami ); do
    echo item: $i
done

for i in {1..10}; do
    # Loop body
    echo $i
done

for ((i=1; i<=10; i++)); do
    # Loop body
    echo $i
done

my_array=("apple" "banana" "orange")

for fruit in "${my_array[@]}"; do
    echo $fruit
done

while IFS= read -r line; do
    echo $line
done < input.txt

for file in $(ls); do
    echo $file
done

for file in *.txt; do
    echo $file
done

for ((i=0; i<=10; i+=2)); do
    # Loop body
    echo $i
done