07-23-2017
Change login process
Hello everybody !
At the beginning - I hope everything will be understandable as I know that my english skills are not as good as I would like.
I use Manjaro Linux for one year, previously used Ubuntu for 6 years. Today I got an idea to create small USB electronic device but I don't know how to manage it under Linux. What this device should do ? This will be small box with USB interface, inside will be electronics to detect RFID card. If user will approach his RFID card to device - Linux should login that user to system. I suppose that I should write small linux kernel driver to USB that will be run in background and each correct try will log user. Of course, when user has no card it is still possible to login by login and password. My biggest problem is: how to change behaviour of standard Linux login window? What should I google or where find information? I'm not afraid with changing kernel, writing new modules, I would like to learn Linux at all
Thanks in advance for ideas !
Greetings
Mateusz
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LEARN ABOUT DEBIAN
germinate-pkg-diff
GERMINATE-PKG-DIFF(1) Ubuntu General Commands Manual GERMINATE-PKG-DIFF(1)
NAME
germinate-pkg-diff -- compare seeds against currently installed packages
SYNOPSIS
germinate-pkg-diff [-l file] [-m {i|r|d}] [-a arch] [seeds]
DESCRIPTION
germinate-pkg-diff compares the expansion of a list of seed packages against the set of packages installed on the current system. When con-
structing seeds for a software distribution, it can be used to iteratively find packages installed on developers' systems that should be
included in the seeds.
A list of seeds against which to compare may be supplied as non-option arguments. Seeds from which they inherit will be added automatically.
The default is 'desktop'.
OPTIONS
-l, --list file
Read the list of currently installed packages from file. The default is to read the output of dpkg --get-selections, and any supplied
file should be in the same format.
-m, --mode {i|r|d}
Set the output mode as follows:
i Show the dpkg selections needed to install just these seeds. List unseeded but installed files as ``deinstall'', and seeded but
uninstalled files as ``install''.
r List unseeded but installed files as ``install'', and seeded but uninstalled files as ``deinstall''.
d Show the differences between the packages specified by the seeds and the list of installed packages, in a somewhat diff-like for-
mat.
-S, --seed-source source,...
Fetch seeds from the specified sources. The default is http://people.canonical.com/~ubuntu-archive/seeds/.
-s, --seed-dist dist
Fetch seeds for distribution dist. The default is ubuntu.precise.
-d, --dist dist,...
Operate on the specified distributions. The default is precise. Listing multiple distributions may be useful, for example, when exam-
ining both a released distribution and its security updates.
-a, --arch arch
Operate on architecture arch. The default is i386.
BUGS
--mode r is useless as dpkg --set-selections input.
AUTHORS
Lamont Jones <lamont@ubuntu.com>
Colin Watson <cjwatson@canonical.com>
germinate-pkg-diff is copyright (C) 2004, 2005, 2006, 2007, 2008 Canonical Ltd. See the GNU General Public License version 2 or later for
copying conditions. A copy of the GNU General Public License is available in /usr/share/common-licenses/GPL.
Ubuntu Jul 18, 2007 Ubuntu