We present a short tutorial on driving the 2-meter telescope coudé spectrograph and on acquisition of scientific data. We hope that visitors collaborating with stellar department will appreciate this tutorial as an useful cookbook. Although the user interface driving the spectrogtaph and CCD controller is quite comfortable, it is not possible to find or understand all keywords and commands intuitively. Therefore we present this manual containing all necessary commands with descriptions and examples.
The reduction of astrophysical spectra is discussed in general. This article is intended as an introduction to following papers where we describe the reduction of data exposed by particular devices (coudé slit spectrograph and Cassegrain fiber-fed echelle spectrograph HEROS).