How to process every second file in bash?

Question

I have a directory with a few dozens of files. I would like to do something with every second file from this directory. By now I only used find command but with thi

Answer 1

for file in `find dir -type f | awk 'NR % 2 == 0'`; do
  echo $file
done

NR is the current row number. To get odd rows, use ... == 1.