* To get rid of problems with the flickering screen with the usual Debian
  boot cds, start the appropriate kernel with the following options:

   video=vga16:off

* Package lists are stored in /var/lib/apt/lists/
  This directory contains files with lengthly filenames where the name contains
  the server name, the location on the server and the processor architecture
  Typical example:
  ftp.de.debian.org_debian_dists_stable_main_binary-i386_Packages
  .
  These files can be searched for package information, even for those packages
  that are not installed on the current system:
  grep "^Filename: .*apache" *binary-i386_Packages

* Install Scripts (pre-install, post-remove, ...) are in /var/lib/dpkg/info

* Install source packages
  Compile/build them on one system the created .deb package can be installed
  on other systems that have a similar configuration

# make sure debhelper and fakeroot packages are installed

apt-get source libdbd-oracle-perl

# Now diff.gz .dsc and tar.gz file are in current directory
# Additionally the tar.gz is unpacked, the patches are applied and tarball is
# renamed to orig.tar.gz
cd libdbd-oracle-perl-1.16/
echo $ORACLE_HOME
# Check the rules file if it matches the current linux system
nvi debian/rules

# finally build the deb file
# -uc means no changelog and -us no signature
debuild -e ORACLE_HOME --set-envvar LD_LIBRARY_PATH=$ORACLE_HOME/lib -uc -us


* Wichtige Optionen fuer dpkg
  dpkg -s|--status <package-name> ...      display package status details
  dpkg -p|--print-avail <package-name> ... display available version details
  dpkg -L|--listfiles <package-name> ...   list files `owned' by package(s)
  dpkg -l|--list [<pattern> ...]           list packages concisely
  dpkg -S|--search <pattern> ...           find package(s) owning file(s)
  dpkg --configure              <package name> ... | -a|--pending
  dpkg --get-selections [<pattern> ...]    get list of selections to stdout
  dpkg --set-selections                    set package selections from stdin
  dpkg -C|--audit                          check for broken package(s)

Use dpkg -b|--build|-c|--contents|-e|--control|-I|--info|-f|--field|
 -x|--extract|-X|--vextract|--fsys-tarfile  on archives (type dpkg-deb --help.)

Options:
  --no-act                   Just say what we would do - don't do it
  --ignore-depends=<package>,... Ignore dependencies involving <package>

* Minimal package configuration to allow X-forwarding

  ii  x11-common        1:7.3+20         X Window System (X.Org) infrastructure
  ii  xauth             1:1.0.3-2        X authentication utility
  ii  libx11-6          2:1.0.3-7        X11 client-side library
  ii  libx11-data       2:1.1.5-2        X11 client-side library
  ii  libxau6           1:1.0.3-3        X11 authorisation library
  ii  libxext6          2:1.0.4-2        X11 miscellaneous extension library
  ii  libxmu6           2:1.0.4-1        X11 miscellaneous utility library
  ii  libxmuu1          2:1.0.4-1        X11 miscellaneous micro-utility library

* Emacs with X-Support (Lucid) uses Athena Widgets
  ii  libxt6            1:1.0.5-3        X11 toolkit intrinsics library
  ii  libice6           2:1.0.4-1        X11 Inter-Client Exchange library
  ii  libsm6            2:1.0.3-2        X11 Session Management library
  ii  xaw3dg            1.5+E-17         Xaw3d widget set
  ii  libxpm4           1:3.5.7-1        X11 pixmap library

* Addiitionally for xpdf
  ii  libxfont1         1:1.3.3-1        X11 font rasterisation library
  ii  xfonts-encodings  1:1.0.2-3        Encodings for X.Org fonts
  ii  xfonts-utils      1:7.4+1          X Window System font utility programs


* General Xresource settings go into /etc/X11/Xresources/xbase-clients
  From scratch it only contains a identifying comment line
  ! /etc/X11/Xresources/xbase-clients
  useful additions are:
!
! xman
!
Xman*manualFontNormal: -adobe-courier-medium-r-*-*-12-*-*-*-*-*-iso8859-*
Xman*manualFontBold: -adobe-courier-bold-r-*-*-12-*-*-*-*-*-iso8859-*
Xman*directoryFontNormal: -adobe-helvetica-medium-r-*-*-12-*-*-*-*-*-iso8859-*