asche_0 (Case Conflict 1)/code/SH/volume

   1 #!/bin/bash
   2
   3 if [ "$1" = "" ]; then
   4
   5     exit
   6
   7 elif [ "$1" = "mute" ]; then
   8
   9     if [ "`amixer get PCM | grep off -o | uniq`" = "off" ]; then
  10         amixer set PCM unmute &>/dev/null
  11     else
  12         amixer set PCM mute &>/dev/null
  13     fi
  14
  15 elif [ "`echo $1 | grep + -o`" = "+" ]; then
  16
  17     vol=`echo $1 | grep -P "\d{1,}" -o`
  18     amixer set PCM $vol"%+" unmute &>/dev/null
  19
  20 elif [ "`echo $1 | grep - -o`" = "-" ]; then
  21
  22     vol=`echo $1 | grep -P "\d{1,}" -o`
  23     amixer set PCM $vol"%-" unmute &>/dev/null
  24
  25 else
  26
  27     amixer set PCM $1"%" unmute &>/dev/null
  28
  29 fi