empty=''

echo 'Testing: in ""'
for a in ""; do echo ".$a."; done

echo 'Testing: in '"''"
for a in ''; do echo ".$a."; done

echo 'Testing: in $empty'
for a in $empty; do echo ".$a."; done

echo 'Testing: in $empty""'
for a in $empty""; do echo ".$a."; done

echo 'Testing: in $empty'"''"
for a in $empty''; do echo ".$a."; done

echo 'Testing: in "$empty"'
for a in "$empty"; do echo ".$a."; done

echo Finished