Вы не забыли добавить класс в коммит?
```
compile:
    [javac] Compiling 25 source files to /home/cymkuh/work/fizteh/out
    [javac] /home/cymkuh/work/fizteh/fizteh-java-2013/src/ru/fizteh/fivt/students/belousova/shell/MainShell.java:44: error: cannot find symbol
    [javac]         CommandMv mv = new CommandMv();
    [javac]         ^
    [javac]   symbol:   class CommandMv
    [javac]   location: class MainShell
    [javac] /home/cymkuh/work/fizteh/fizteh-java-2013/src/ru/fizteh/fivt/students/belousova/shell/MainShell.java:44: error: cannot find symbol
    [javac]         CommandMv mv = new CommandMv();
    [javac]                            ^
    [javac]   symbol:   class CommandMv
    [javac]   location: class MainShell
    [javac] Note: /home/cymkuh/work/fizteh/fizteh-java-2013/src/ru/fizteh/fivt/students/anastasyev/calculator/Main.java uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 2 errors
```