dotfiles/scripts/.bin/one-instance

#!/bin/bash
if [ "x$1" != "x" ]
then
  pgrep -l -u "$USER" -f "$1" | egrep -v "/bin/bash|/bin/sh" | grep -vq "$$"
  if [ $? == "0" ]
  then
    WID=`xdotool search --class $1 | head -1`
    CWID=`xdotool getactivewindow`
    if [ "x$WID" != "x$CWID" ];
    then
        xdotool windowactivate $WID
        #wmctrl -i -R $WID
    else
        xdotool windowminimize $WID
    fi
  else
    if [ "x$3" == "x" ]
    then
      /usr/bin/$1
    else
      eval "$3"
    fi
  fi
else
  echo "Usage: one-instance program-name [extra action]"
fi