Bash Script – iterating over output of find

by 
folders=`foo`

is always wrong, because it assumes that your directories won’t contain spaces, newlines (yes, they’re valid!), glob characters, etc. One robust approach (which requires the GNU extension -print0) follows:

while IFS='' read -r -d '' filename; do
  : # something with "$filename"
done < <(find . -maxdepth 1 -type d -print0)

Another safe and robust approach is to have find itself directly invoke your desired command:

find . -maxdepth 1 -type d -exec printf '%s\n' '{}' +

See the UsingFind wiki page for a complete treatment of the subject.

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