Any of the commands can be executed with only the first few (unambiguous) characters of their name.
For example, the status command can be shortened to:
/home/cbegin/testdb$ migrate sta
Or even just:
/home/cbegin/testdb$ migrate st
If you script migrations using unix shell scripts or Windows batch files, be sure to always use the full name for safety. That way, if the shortcut becomes ambiguous in the future, your script will still function.