Update and rename 'rsync'.md to bulk_copy.md

Author: rern

'rsync'.md

@@ -0,0 +1,21 @@
+**rsync** - Copy directory
+```sh
+rsync --ignore-existing --progress -rvh /source/path /dstination/path
+```
+- `-r` recursive
+- `-v` verbose
+- `-h` human unit
+
+**dd** - Clone disk / partition
+```sh
+# get disks
+fdisk -l
+
+# clone disk
+dd if=/dev/sdb of=/dev/sdc
+
+# clone partition
+dd if=/dev/sdb1 of=/dev/sdc1
+```
+- `if=` source disk / partition  
+- `of=` destination disk / partition