#! /bin/sh
# /etc/init.d/rvid

# Carry out specific functions when asked to by the system
case "$1" in
  start)
    cd /etc/hildon-welcome.d/dconfs/

    if [ -f 1.conf ]; then

    # determine number of files in /dconfs
    nof=$(ls *.conf | wc -l)

    # get random number
    rna=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -f1 -d" ")
    rna=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -f1 -d" ")

    if [ $rna -ge $rnb ]; then
    let "rn = $rna - $rnb"
    else
    let "rn = $rnb - $rna"
    fi

    # in range of 1 - nof
    let "rr = $rn % $nof + 1"

    # choose random conf
    rf="$rr.conf"
    echo "$rr.conf"

    # copy it over to default.conf
    cp $rf ../default.conf

    fi 
    ;;
  stop)
    ;;
  *)
    ;;
esac

exit 0

chmod 755 /etc/init.d/rvid
update-rc.d rvid defaults

blablabla... same as in the code under this code.. blablabla

    # get random number
    rn=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -f1 -d" ")

    blablabla... the same again... blablabla

start on starting shutdown

script

  cd /etc/hildon-welcome.d/dconfs/

  if [ -f 1.conf ]; then

    # check which file is currently used
    if [ -f *.lock ]; then
      cuf=$(ls *.lock)
      ruf=$cuf
      rm *.lock
    else
      cuf="1.lock"
      ruf=$cuf
    fi

    # determine number of files in /dconfs
    nof=$(ls *.conf | wc -l)

    while [ "$ruf" = "$cuf" ]; do

      # get "random" number lol
      rn=$(date +%s)

      # in range of 1 - nof
      let "rr = $rn % $nof + 1"

      # choose random conf
      ruf="$rr.lock"
      rf="$rr.conf"
 
    done
 
    # set file for checking which file is in use
    rb="$rr.lock"

    # copy it over to default.conf
    cp $rf ../default.conf
    touch $rb

  fi

end script