Volume control from command line

Hello,
I am using mini2440 with linux.
Is there any way to control system volume from command line?

The oss driver suggests that we can change the volume using the following
node, 

i've tried to echo some values around, but so far no good

[root@FriendlyARM card0]# cat oss_mixer 
VOLUME "Master" 0
BASS "Tone Control - Bass" 0
TREBLE "Tone Control - Treble" 0
SYNTH "" 0
PCM "" 0
SPEAKER "" 0
LINE "" 0
MIC "Mic" 0
CD "" 0
IMIX "" 0
ALTPCM "" 0
RECLEV "" 0
IGAIN "Capture" 0
OGAIN "" 0
LINE1 "" 0
LINE2 "" 0
LINE3 "" 0
DIGITAL1 "" 0
DIGITAL2 "" 0
DIGITAL3 "" 0
PHONEIN "" 0
PHONEOUT "" 0
VIDEO "" 0
RADIO "" 0
MONITOR "" 0