#!/bin/bash
# saved as sos.sh
# source: blinux-list at leb.net/blinux
SEVERITY_PITCH=${1:-440}
DOT=100
DASH=500
DELAY=25
beep -f $SEVERITY_PITCH -l $DOT -r 3 -d $DELAY
beep -f $SEVERITY_PITCH -l $DASH -r 3 -d $DELAY
beep -f $SEVERITY_PITCH -l $DOT -r 3 -d $DELAY

# call script with:  sos.sh 880
# for a high-C and with no parameter for a concert C (440, IIUC)
# The hotter your processor, the higher-pitched you could make this.