How can I read words (instead of lines) from a file?

Question

I\'ve read this question about how to read n characters from a text file using bash. I would like to know how to read a word at a time from a file that looks like:

Answer 1

Ordinarily, you should read from a file using a while read -r line loop. To do this and parse the words on the lines requires nesting a for loop inside the while loop.

Here is a technique that works without requiring nested loops:

for word in $(