Using as: o

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### 2.12 Name the Object File: `-o`

There is always one object file output when you run `as`. By default it has the name `a.out` (or `b.out`, for Intel 960 targets only). You use this option (which takes exactly one filename) to give the object file a different name.

Whatever the object file is called, `as` overwrites any existing file of the same name.