Update cheatsheets

vboxmanage

@@ -0,0 +1,27 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# VBoxManage
+
+> Command-line interface to VirtualBox.
+> Includes all the functionality of the GUI and more.
+> Some subcommands such as `vboxmanage startvm` have their own usage documentation.
+> More information: <https://www.virtualbox.org/manual/ch08.html#vboxmanage-intro>.
+
+- Execute a VboxManage subcommand:
+
+`VBoxManage {{subcommand}}`
+
+- Display help:
+
+`VBoxManage --help`
+
+- Display help for a specific subcommand:
+
+`VBoxManage --help {{clonevm|import|export|startvm|...}}`
+
+- Display version:
+
+`VBoxManage --version`