When I do aws s3 ls s3://mybucket/folder, I'm getting an extra row. I'm expecting 6 rows, but am getting back 7. Output looks like:
2015-10-13 15:10:10 0 folder/
2015-10-13 15:10:10 12 folder/test1.txt
2015-10-13 15:10:10 123 folder/test2.txt
2015-10-13 15:10:10 53 folder/test3.txt
2015-10-13 15:10:10 12 folder/test4.txt
2015-10-13 15:10:10 42 folder/test5.txt
2015-10-13 15:10:10 12 folder/test6.txt
S3 doesn't show 7 items, it just shows 6. This was running perfectly fine an hour ago but suddenly started showing that first item just now
Often, software that manipulates Amazon S3 objects will create this mysterious zero-length object as a placeholder for a "folder", because Amazon S3 does not support folders in the normal sense.
You might be able to delete it with aws s3 rm s3://mybucket/folder/. This will not delete the contents of the folder (since folders don't exist!).