In fact, there are at least two directories under linux directory, respectively Unlike ..
The first to be tested:
According to wildcard rules of linux. The beginning of the file / directory need. To display matching.
So we need to use the time ls. * To see it
Only ls *. * Can not see
Then look at a field ls -l command
Our concern is the second column.
When the file is non-directory This field indicates the number of hard links.
That directory of time for it? Directory hard links are not allowed.
When the file is a directory when the directory number indicates the directory (comprising the ..), so that at least 2
As shown above, the value of directory field oslab 5, except that we can deduce. .. and which should have three subdirectories
Sure enough, it is three.
