For the destination directory use a single dot '.'
Long Answer
From your home directory type the following:
rick@dell:~$ mkdir a && mkdir a/b && mkdir a/b/c && mkdir a/b/c2
────────────────────────────────────────────────────────────────
rick@dell:~$ cd a/b/c
────────────────────────────────────────────────────────────────
rick@dell:~/a/b/c$ cp /etc/default/grub .
────────────────────────────────────────────────────────────────
rick@dell:~/a/b/c$ cp /etc/default/grub ..
────────────────────────────────────────────────────────────────
rick@dell:~/a/b/c$ cp /etc/default/grub ../c2
────────────────────────────────────────────────────────────────
rick@dell:~/a/b/c$ cd ../../
────────────────────────────────────────────────────────────────
rick@dell:~/a$ tree
.
└── b
├── c
│ └── grub
├── c2
│ └── grub
└── grub
3 directories, 3 files
We created 4 directories on one line by using && to join multiple lines together. Then changed to the directory a/b/c, which is the current directory for the following copy commands:
- In the first copy command (
cp) we set the target / destination to our
current directory (c) with ..
- In the second copy command we set the directory to the parent
directory (b) with
...
- In the third copy command we set the directory to the sibling
directory (c2) with
../c2
Next we changed directory to our grand-parent directory (a) using cd ../../.
Finally we use tree to show all the directories and files under directory a.