quelcom tools is a set of command line tools to manipulate .wav and .mp3 files.
with these tools you can do a set of operations (get info, join, cut, delete fragments, detect silence, check, fade, ...) on maybe the most popular sound file formats (wave and mpeg layer 3) without the need of a grafical interface (xwindow) nor these or those grafical libraries.
since they are build as command line apps, they can be easily included in scripts to do automatically some job.
the quelcom tools package is written by david manyé and you may find the package sources in http://www.etse.urv.es/~dmanye/quelcom/quelcom.html.