Catwav is a Unix command-line tool for concatenating two .wav files together to a third.
It just works like the well known cat command for concatenating regular files.
catwav file1.wav file2.wav outputfile.wav
Public domain. Do as you see fit with this script.
#!/bin/sh sox $1 -r 44100 -c 2 -s -w /tmp/$$-1.raw sox $2 -r 44100 -c 2 -s -w /tmp/$$-2.raw cat /tmp/$$-1.raw /tmp/$$-2.raw > /tmp/$$.raw sox -r 44100 -c 2 -s -w /tmp/$$.raw $3 rm /tmp/$$*.raw