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       ctmg close  container_path
       ctmg list
 
+Calling `ctmg` with no arguments will call `list` if there are any containers open, and otherwise show the usage screen. Calling `ctmg` with a filename argument will call `open` if it is not already open and otherwise will call `close`.
+
 ### Examples
 
 #### Create a 100MiB encrypted container called "example"