It doesn’t feel like the creation time of this directory, nor the time when the files in this directory were last modified.
仅有的幸福2017-06-05 11:14:38
ll
should be an alias for ls -l
.
man ls
Then search for --time
and you can see that it displays the modification time (mtime) by default.
For directories, it is the last modification time of this directory. And what's in the catalog? File item. That is, the file metainformation you will see when lsing a directory. So the mtime update of the directory means that the files in it are created, deleted, renamed, permissions updated...
巴扎黑2017-06-05 11:14:38
linux does not have the ll
command, enter type ll
to see what the alias is. Generally speaking, it should be ls -l