# This is the first example of reading a file into a loop
# The 'read' command is able to be used in a while loop because it
# returns 'true' after is executes
# The variable 'content' is set to the content of 'text.txt' because text from the 'cat' command is being piped into the 'read' command
while cat text.txt | read content
do
    echo $content
done

# This is the second example of reading a file into a loop
# This example uses file redirection to input the contents of 'text.txt' into the while loop
# The file input operator 'command < filename' treats the entire while loop 'code block' as 1 command and pipes the contents of 'text.txt' into it
while read content
do
    echo $content
done < script.sh