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1 beyerle@PS 1 
#/!bin/bash
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#
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# unmute all mixers and set volumes to $1
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#
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# Urs Beyerle, PSI
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#
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AMIXER=$( which amixer )
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if [ "$AMIXER" = "" ]; then
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    echo "Sorry command amixer not found."
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    exit 1
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fi
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VOLUME=$1
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[ "$VOLUME" = "" ] && VOLUME=60
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VOLUME="${VOLUME}%"
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echo -n "Set all mixer controls to $VOLUME ... "
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# search mixer controls and unmute them
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$AMIXER scontrols | cut -d"'" -f 2 | while read mixer; do
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    $AMIXER set "$mixer" $VOLUME unmute >/dev/null 2>/dev/null
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done
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echo "done."