Переместить окно в настройках двойного монитора

В эти выходные я написал сценарий (gdm-greeter). Он хорошо работает на CentOS 6.2, интересно, будет ли это полезно для Ubuntu?

#!/bin/bash
#
# $LastChangedDate: 2012-02-17 09:13:10 +0100 (Fri, 17 Feb 2012) $
# $Revision: 1627 $
#

# Get the default exlude list
DefaultExclude=`sed 's,</schema>,#,' /etc/gdm/gdm.schemas | \
                tr '\n#' '#\n' | \
                grep '>greeter/Exclude<' | tr '\n#' '#\n' | \
                grep '<default>' | \
                sed -e 's,.*<default>,,' -e 's,</default>.*,,'`

# Get the Exclude list from the config
eval `grep '^Exclude=' /etc/gdm/custom.conf 2> /dev/null`

# If empty copy the default
if [ "$Exclude" = "" ]
then
   Exclude=$DefaultExclude
fi

# Collect all user accounts with a shell
Users="`grep 'sh$' /etc/passwd | awk -F: '{print $1}' | \
        sort | tr '\n' ',' | sed 's/,$//'`"


#------------------------------------------------------------------------------

# The functions area

PlaceExclude() # $1 new exclude string
{
   # Create a .bak file
   if [ ! -f /etc/gdm/custom.conf.bak ]
   then
      cp /etc/gdm/custom.conf /etc/gdm/custom.conf.bak
   fi

   # Create a tmp file without the Exclude string
   cat /etc/gdm/custom.conf | tr '[\n' '\n[' | \
   sed -e 's/^\(greeter[]].*\)[[]Exclude=[^[]*\([[].*\)/\1\2/' | \
   tr '[\n' '\n[' > /tmp/custom.conf.$$

   # If the tmp file is there and we have non default Exclude
   if [ -f /tmp/custom.conf.$$ ]
   then
      if [ "$1" = "$DefaultExclude" ]
      then
         cat /tmp/custom.conf.$$ > /etc/gdm/custom.conf
      else
         # Place the new Exclude string
         cat /tmp/custom.conf.$$ | tr '[\n' '\n[' | \
         sed -e "s/^greeter[]][[][[]/greeter][Exclude=$1[[/" | \
         tr '[\n' '\n[' > /etc/gdm/custom.conf
      fi
   fi
   rm -f cat /tmp/custom.conf.$$
}

#------------------------------------------------------------------------------
#------------------------------------------------------------------------------

# Command area

add() # Cmd (Add a user to the greeter {<user>
{
   UserFilter=`echo $Users | sed 's/,/|/g'`
   if ! echo $1 | egrep -w $UserFilter &> /dev/null
   then
      echo "Error: user $1 unknown"
      echo
      return 1
   fi

   # Only work with the users not in the default exclude list
   Filter=`echo $DefaultExclude | sed 's/,/|/g'`
   Hidden=`echo $Exclude | tr ',' '\n' | egrep -vw "$Filter" | tr '\n' ','`

   # Check if we need to do something
   if ! echo $Hidden | tr ',' '\n' | grep -w $1 &> /dev/null
   then
      echo
      echo "User $1 is not hidden"
      echo
   else
      # Remove the user from the exclude
      PlaceExclude "`echo $Exclude | tr ',' '\n' | grep -vw $1 | \
                     tr '\n' ',' | sed 's/,$//'`"

      # Tell the action
      echo "User $1 added to the greeter"
      echo
   fi
}

del() # Cmd (Delete/hide a user from the greeter {<user>
{
   UserFilter=`echo $Users | sed 's/,/|/g'`
   if ! echo $1 | egrep -w $UserFilter &> /dev/null
   then
      echo "Error: user $1 unknown"
      echo
      return 1
   fi

   # Check if we need to do something
   if echo $Exclude | tr ',' '\n' | grep -w $1 &> /dev/null
   then
      echo
      echo "User $1 is already excluded from the greeter"
      echo
   else
      # Exclude the user
      PlaceExclude "$1,$Exclude"

      # Tell the action
      echo "User $1 hidden from the greeter"
      echo
   fi
}

hide() # CMD (Delete/hide a user from the greeter {<user>
{
   del $1
}

hidden() # Cmd (List the hidden users {
{
   Filter=`echo $DefaultExclude | sed 's/,/|/g'`
   Hidden=`echo $Exclude | tr ',' '\n' | egrep -vw "$Filter" | tr '\n' ','`

   if [ ${#Hidden} -eq 0 ]
   then
      echo "No hidden users"
      echo
   else
      echo
      echo "Users hidden from the greeter:"
      echo
      echo $Hidden | tr ',' '\n' | sed 's/^/   /'
   fi
}

users() # Cmd (List the users in the greeter {
{
   Filter=`echo $Exclude | sed 's/,/|/g'`
   Greeters=`echo $Users | tr ',' '\n' | egrep -vw "$Filter" | tr '\n' ','`

   if [ ${#Greeters} -eq 0 ]
   then
      echo "No users in the greeter"
      echo
   else
      echo
      echo "Users in the greeter:"
      echo
      echo $Greeters | tr ',' '\n' | sed 's/^/   /'
   fi
}

list() # CMD (List the users in the greeter {
{
   users
}
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------

# Framework area

help() # Cmd (Command help {[command]
{
   if [ "$1" = "" ]
   then
      CMD=help
   else
      CMD=$1
   fi

   if ! grep \^${CMD}*\(\).*#.*Cmd $0 > /dev/null 2>&1
   then
   (
      echo
      echo "Error: unknown cmd"
      echo
   ) >&2
   else
   (
      echo
      echo "Usage: `basename $0` $CMD `grep \^${CMD}*\(\).*#.*Cmd $0 | \
                    sed 's/.* {//g'`"
      echo
   ) >&2
   fi
}

#
# Main
#

if [ "$1" != "" ] && grep -i $1\(\).*#.*Cmd $0 > /dev/null 2>&1
then
   $*
else
   echo
   echo "Usage: `basename $0` command [parm1] [parm2] [..]"
   echo
   echo "  Available Commands:"
   echo
   grep \^[0-9a-z_A-Z]*\(\).*#.*Cmd $0  | \
   awk -F\( '{printf "%-16s %s\n",$1,$3}' | sed 's/ {.*//g' | sort
   echo
fi