#!/bin/sh

file=/etc/mplayer/mplayer.conf
option=$1
value=$2

if grep -q "^$option=" $file; then
  if [ "$3" = "concat" ] && ! grep -q "^$option=\$" $file; then
    sed -i "s|^\($option=.*[^,]\).*|\1,$value|" $file
  else
    sed -i "s|^$option=.*|$option=$value|" $file
  fi
else
  echo "$option=$value" >> $file
fi
