In the Ubuntu 16.04, I very appreciated resizing windows by Ctrl+Alt+Num shortcuts; e.g. Ctrl+Alt+7 resized a window into the top left quarter of the current screen. In the Ubuntu 18.04, only Ctrl+Alt+5 and Ctrl+Alt+0 works. I see a possibility to 'Add Custom Shortcut'. What commands should I use for the other Ctrl+Alt+Num shortcuts according to the Ubuntu 16.04? Thanks!
Tomáš Pečený's questions
Sometimes I copy a lot of data using the
dd if=/dev/sda of=/dev/sdbcommand. Recently, that copying made a bug that I have found only accidentally. Which command should I use to compare the original and the copy? The
info diff
apparently does not show that such sort of parameters can be used with the diff command.
I have downloaded the icu4c-61_1-Ubuntu16.04-x64.tgz from the http://site.icu-project.org/download/61#TOC-ICU4C-Download site. I do not see any installation instruction there. In my NetBeans C/C++ 'Ant Library Manager' the button 'New Library' and other fields are inactive - inaccessible. (In the NetBeans, C debugging works.)
In the filesystem, is there a directory where the unpacked library should be placed and/or a file where the information should be added? Thanks!
(I thought that Ubuntu's upgrading (12.04 -> 16.04) lost a useful option, and I wanted to propose its returning.
Then I found that this option was vastly improved; but the answer is so generally useful that I propose to leave this question as general.)
Where should I place the suggestion? At the https://bugs.launchpad.net/unity? Thanks!
In Ubuntu 12.04 I was used to run the 'Disk Utility' and choose 'Check Filesystem'; its subtitle showed also 'and repair'. In Ubuntu 16.04 I have only found the 'Disks' utility that looks similarly but has no 'Check Filesystem' option, even for the superuser.
I have installed Ubuntu system at an SS disk and I wish users to access partitions of the second (mechanical) disk as common depositories with full read/write/delete permissions for each file. And I wish that each user see such a partition (say /dev/sdb7) as a directory with a fixed name (say /home/the_user/F). I was advised (Is it possible to mount a partition as a common depository for users with the same relative path?) to mount the partition during boot and to symlink that mountpoint to somewhere in the user's home. However, in the manual for
linkI see an option
‘-d’ ‘-F’ ‘--directory’ Allow users with appropriate privileges to attempt to make hard links to directories. However, note that this will probably fail due to system restrictions, even for the super-user.I am afraid of it. Please advise me an example of a proper link; and the corresponding group or bindfs commands to be used at user login or once forever by the root. Thanks!
I need to mount a directory /home/MyUser/Share
to another computer as an equivalent to smb://IP_address/share
that enables me writing into files there via Nautilus.
Even for MyUser being a sudoer, my attempts
sudo mount -t cifs //IP_address/share /home/MyUser/Share -o username=User_at_IP_address,noexec<
or
sudo mount.cifs //IP_address/share /home/MyUser/Share -rw
enable reading only and
sudo mount --make-shared /home/MyUser/Share
does not enable writing, too.
A standard user can use pkexec
instead of sudo
or change his account via the su
command, but the problem with user rights to write is then even greater.
Please advise me the correct steps. Thanks!
If I try using sudo as a non-privileged user, I get a message that the user is not in the sudoers file. I know the Administrator password, but I do not know, how to use it from a non-privileged (Standard) user.
I frequently use Krusader (Version 2.4.0-beta1 "Migration") file manager. It seems I have done something (mouse drag?) that resulted in a completely empty (white) Krusader window except for its title bar. Restarting the PC does not solve it. Even reinstalling Krusader from the Ubuntu Software Center did not solve it.
I have a relatively fresh clonezilla copy of the Ubuntu system partition; do I have to use it for the purpose? What I must not do with the Krusader to avoid such crashes? May it be caused by a graphics driver?
My system and the display after launching the Krusader.
After entering the password, the KDE Wallet Window disappears. After restarting the PC (after an Update Manager action) only the red icon on the right above the display whitens. Krusader still behaves as described.
The behavior is a matter of the system state of the concerned PC (at the following pictures, running debugger of an other Krusader version at both the PCs is shown.): I have two identical PCs. One of them bleaches Krusader.
$ lspci -v
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
Subsystem: Hewlett-Packard Company d330 uT
Flags: bus master, fast devsel, latency 0
Memory at f8000000 (32-bit, prefetchable) [size=64M]
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company D530 sff(dc578av)
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Memory at fc400000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 14e0 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: intelfb, i915
00:06.0 System peripheral: Intel Corporation 82865G/PE/P Processor to I/O Memory Interface (rev 02)
Flags: fast devsel
Memory at fecf0000 (32-bit, non-prefetchable) [size=4K]
The other does not bleach Krusader, now.
$ lspci -v
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
Subsystem: Hewlett-Packard Company d330 uT
Flags: bus master, fast devsel, latency 0
Memory at f8000000 (32-bit, prefetchable) [size=64M]
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company D530 sff(dc578av)
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Memory at fc400000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 24e0 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: intelfb, i915
00:06.0 System peripheral: Intel Corporation 82865G/PE/P Processor to I/O Memory Interface (rev 02)
Flags: fast devsel
Memory at 40100000 (32-bit, non-prefetchable) [size=4K]
I suspect that the graphics driver is not fully compatible with my system, because both the computers have recently started to show a oscillating picture when waking up from the "suspend" status in Ubuntu (not in Windows).
I tried to install a newer Intel 82865G graphics driver. I have not found it prepared for Ubuntu 12.04.
I upgraded the system of the PC with bleached Krusader to Ubuntu 14.04 and used the intel-linux-graphics-installer_1.0.6-0intel1_i386.deb
from Intel's site; it installed a further repository. I understand that it should yield new drivers. I have updated the system with Software Updater. But Krusader remains bleached also after PC restart.
I also tried to use the disk from the other PC. In the Ubuntu 12.04 the Krusader works OK, so the graphics hardware has not failed.
On an older PC of a similar sort, in Ubuntu 12.04 the Krusader works OK:
$ lspci -v
00:00.0 Host bridge: Intel Corporation 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 02)
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation 82815 Chipset Graphics Controller (CGC) (rev 02) (prog-if 00 [VGA controller])
Subsystem: Compaq Computer Corporation Device 001a
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 5
Memory at 44000000 (32-bit, prefetchable) [size=64M]
Memory at 40500000 (32-bit, non-prefetchable) [size=512K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 01) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=64
I/O behind bridge: 00001000-00001fff
Memory behind bridge: 40000000-404fffff
Kernel modules: shpchp
This older PC wakes up OK from the "suspend" status, as did both the other PCs some time ago.
Now, I see Krusader bleached on the older PC, too: I caused it by trying to look at the content of a directory while Krusader copied several GiBs from another PC.
The Krusader window remained white after clicking Pause, too. But another instance of Krusader worked OK at the same time. After restarting the older PC the Krusader remains bleached and another Krusader instance called from an other Terminal is bleached, too.
First, I suspected my old hardware and its drivers. As a reply to a comment: Installing pciutils in the Ubuntu 14.04 did not succeed. From the lshw
listing, a part about graphics is
*-display
description: VGA compatible controller
product: 82865G Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:16 memory:f0000000-f7ffffff memory:fc400000-fc47ffff ioport:14e0(size=8)
*-generic UNCLAIMED
description: System peripheral
product: 82865G/PE/P Processor to I/O Memory Interface
vendor: Intel Corporation
physical id: 6
bus info: pci@0000:00:06.0
version: 02
width: 32 bits
clock: 33MHz
configuration: latency=0
resources: memory:fecf0000-fecf0fff
To Wilf's idea of Terminal warnings: The bleached Krusader in Ubuntu 14.04 tells
$ krusader
Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
krusader(5824)/kdecore (KLibrary) findLibraryInternal: plugins should not have a 'lib' prefix: "libkonsolepart.so"
"/org/freedesktop/UDisks2/block_devices/sdb" lost interfaces: ("org.freedesktop.UDisks2.PartitionTable")
"/org/freedesktop/UDisks2/block_devices/sdb1" lost interfaces: ("org.freedesktop.UDisks2.Partition", "org.freedesktop.UDisks2.Filesystem", "org.freedesktop.UDisks2.Block")
"/org/freedesktop/UDisks2/block_devices/sdb" lost interfaces: ("org.freedesktop.UDisks2.Block")
"/org/freedesktop/UDisks2/drives/SanDisk_SDDR_113_6333011111B1" lost interfaces: ("org.freedesktop.UDisks2.Drive")
"/org/freedesktop/UDisks2/drives/SanDisk_SDDR_113_6333011111B1" has new interfaces: ("org.freedesktop.UDisks2.Drive")
"/org/freedesktop/UDisks2/block_devices/sdb" has new interfaces: ("org.freedesktop.UDisks2.Block", "org.freedesktop.UDisks2.PartitionTable")
"/org/freedesktop/UDisks2/block_devices/sdb1" has new interfaces: ("org.freedesktop.UDisks2.Block", "org.freedesktop.UDisks2.Filesystem", "org.freedesktop.UDisks2.Partition")
The bleached Krusader in Ubuntu 12.04 of the old PC tells
$ krusader
krusader(2584)/kdecore (KLibrary) findLibraryInternal: plugins should not have a 'lib' prefix: "libkonsolepart.so"
I'm looking for Krusader configuration file(s). Are they in the ~/.kde
directory? Which file is it particularly? I'd like to delete the file only before reinstalling Krusader. I am afraid of deleting whole the directory because I have installed other KDE programs. (The KDiff3 is not bleached in the Ubuntu 14.04 of the first PC nor in the Ubuntu 12.04 of the older PC.)
I try to watch how programs work by running them by the 'Qt Creator' debugger. For better orientation I'd like to see also the system (core) utilities fully in the call stack window as I am used from the MS Visual Studio 6.0, not only to see their assembly code. For the utilities, the 'Qt Creator' debugger displays only that their debug symbols are not available. (Sometimes, the system generates bug reports for its developers; the bug report dialog has requested installing such symbols only for a particular program.) How can I get the core debug symbols? (Without translating the whole Ubuntu version. I use the 'Update Manager' to install updates regularly. My
/sys/kernel/debug/x86directory contains only one empty file. I have not found it in the 'Ubuntu software center' nor do I see if some of the packages at the http://packages.ubuntu.com/precise/x11/ is what I seek.) Thanks!
I seek for using LibreOffice Writer or a similar tool as a mail composer and reader in the Evolution.
In Windows Outlook I have used Microsoft Word directly for writing mails. Evolution default mail editor does not enable easy and precise HTML formatting (see comments). One month without answer shows that there is probably no possibility how to configure my present Evolution version (3.2.3) in Ubuntu 12.04 to use the LibreOffice Writer for writing mails and the same Writer or gedit for writing calendar appointment descriptions. I think that many people need it; maybe somebody has so adapted the Evolution source code for his purpose; it would be far more than worth of a bounty of all my reputation. Or, more attention to it will motivate the developers to adapt it in near future.
(I am trying to return to my original question meaning.)
Similarly to How to maintain a file's 'last modified' date ? I need to retain the date while copying the file by Krusader or in a 'Home Folder' window to another PC connected by SSH. Is it possible?
In Windows, I am used to modify directory dates, eg. of directories containing photos according the date when the first photo was taken; and then display a list of the directories sorted by the dates. In Ubuntu, Krusader can display the directories this way. I need to change the date (the "date of modifying") of a directory after I fill it with eg. the photos. How should I change it? Thanks
I intend to use fsck for checking my Linux partition of the main disk, because its file system is suspicious of being
not unmounted cleanlyby shutting down the system. I have searched in my environment variables: none of them except of PATH should control the fsck program. But the program apparently needs to be used during a boot:
:~$ fsck -V fsck from util-linux 2.20.1 Checking all file systems. [/sbin/fsck.ext4 (1) -- /] fsck.ext4 /dev/sda6 e2fsck 1.42 (29-Nov-2011) /dev/sda6 is mounted.(There is no /forcefsck file in my root according to How do I find out if there will be a fsck during the next boot? . My etc/fstab file contains
WARNING!!! The filesystem is mounted. If you continue you WILL cause SEVERE filesystem damage. Do you really want to continue? no check aborted.
# /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda6 during installation UUID=1ac55d8d-c112-4bc7-9e79-921d196f9f79 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda7 during installation UUID=54f7e314-50e2-419b-a45d-47c3058ecc00 none swap sw 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
).
According to an answer to Slow reboot - understanding fsck and tune2fs I have tried tune2fs hoping that I'll get the present value of the
max_mounts_countparameter to be able to set it to 1 for checking the partition during the next boot. But after
sudo rm /var/lib/update-notifier/fsck-at-rebootand a restart I have only got a response
:~$ tune2fs -l /dev/sda6 tune2fs 1.42 (29-Nov-2011) tune2fs: Permission denied while trying to open /dev/sda6 Couldn't find valid filesystem superblock. Can I use
sudo tune2fs -l /dev/sda6safely? Thanks.
Example: In a Terminal command
xdpyinfo | grep resolution(that I have taken from an answer), does the
|character mean that the
xdpyinfooutput shall be sent to the grep program input for printing a line containing the
resolutionstring? Where should I seek for such an information to avoid filling this forum by too simple questions? Thanks.
From the 'Ubuntu Software Center', I have installed Eclipse Platform Version: 3.7.2. and 'eclipse-cdt C/C++ Development Tools'. In the eclipse Samples at Eclipse.org, I see only these for java, not for C/C++ as I need. Therefore I have downloaded hello-2.7.tar.xz from http://ftp.gnu.org/gnu/hello/, unpacked it into my eclipse directory and made a new C Linux project for it. Its 'Project... Build all' does not find the file from the line
#include <config.h>
of the hello.c file as you can see from the listing
**** Build of configuration Debug for project hello-2.7 **** make all Building file: ../src/hello.c Invoking: GCC C Compiler gcc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/hello.d" -MT"src/hello.d" -o "src/hello.o" "../src/hello.c" ../src/hello.c:19:20: fatal error: config.h: No such file or directory compilation terminated. make: *** [src/hello.o] Error 1 **** Build Finished ****
. Please advise me how to set an include system directory in the Eclipse Platform. (In its help, I have tried searching for it; but it only started an indexing that shows '0% complete' even after several hours. The CPU is
Ubuntu Release 12.04 (precise) 32—bit Kernel Linux 3.5.0-39-generic GNOME 3.4.2 Hardware Memory: 994.9 MiB Processor: Intel Pentium(R) 4 CPU 3.00GHz x 2 System Status Available disk space 39.4 GiB.) At all, does the line
#include <config.h>
mean the same in Linux as I am used to from Windows and not a further file from the GNU pages?
Thanks!
I need to correct colours displayed by my monitor. From the 'Ubuntu Software Center' I have installed the 'GNOME Color Manager', but I cannot use it for making my own colour profile: I have not found it (as usually with a new software) in the dash window to be able to run it (and possibly lock to the launcher) and see how to edit a colour profile by it. From the page recommended, I have downloaded the file gnome-color-manager_3.4.0-1_i386.deb and double-clicked at its row in Krusader. Something installed for about 1 second (after previous sudo commands the system does not require the password), but I do not yet see how to run the program installed. Terminal commands that I guessed do not work: I tried e.g
tatatom@Katedrala:~$ gnome-color-manager gnome-color-manager: command not found tatatom@Katedrala:~$ gnome-color-manager_3.4.0 gnome-color-manager_3.4.0: command not found tatatom@Katedrala:~$ color color: command not found tatatom@Katedrala:~$ argyll argyll: command not found, though
tatatom@Katedrala:~$ krusaderworks OK and the 'Ubuntu Software Center' shows that I do have the 'Color' 'GNOME Color Manager' installed, with a 'Color Management System, calibrator and profiler (argyll)' Add-on, and offers their removing.
I have installed Qt Creator 2.7.2 'Based on Qt 5 1.0 (32 bit)'. First I have tried its example analogclock
, but its building does not find a command g++, while I have installed the gcc compiler. See the listing
07:50:44: Running steps for project analogclock... 07:50:44: Starting: "/home/tatatom/Qt/5.1.0/gcc/bin/qmake" /home/tatatom/Qt/5.1.0/gcc/examples/gui/analogclock/analogclock.pro -r -spec linux-g++ CONFIG+=debug CONFIG+=declarative_debug CONFIG+=qml_debug 07:50:45: The process "/home/tatatom/Qt/5.1.0/gcc/bin/qmake" exited normally. 07:50:45: Starting: "/usr/bin/make" g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIE -DQT_QML_DEBUG -DQT_DECLARATIVE_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -I../../../mkspecs/linux-g++ -I../analogclock -I../rasterwindow -I../../../include -I../../../include/QtGui -I../../../include/QtCore -I. -I. -o rasterwindow.o ../rasterwindow/rasterwindow.cpp make: g++: Command not found make: *** [rasterwindow.o] Error 127 07:50:45: The process "/usr/bin/make" exited with code 2. Error while building/deploying project analogclock (kit: Desktop Qt 5.1.0 GCC 32bit) When executing step 'Make' 07:50:45: Elapsed time: 00:01.
I apparently need something more to install or configure: an attempt to build downloaded kaffeine
stated "CMAKE_CXX_COMPILER-NOTFOUND", see the listing
tatatom@Katedrala:~$ cmake kaffeine-1.2.2 -- The C compiler identification is GNU -- The CXX compiler identification is unknown -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done CMake Error: your CXX compiler: "CMAKE_CXX_COMPILER-NOTFOUND" was not found. Please set CMAKE_CXX_COMPILER to a valid compiler path or name. CMake Error at /usr/share/cmake-2.8/Modules/FindKDE4.cmake:98 (MESSAGE): ERROR: cmake/modules/FindKDE4Internal.cmake not found in /home/tatatom/.kde/share/apps;/usr/share/kde4/apps Call Stack (most recent call first): CMakeLists.txt:3 (find_package) CMake Warning (dev) in CMakeLists.txt: No cmake_minimum_required command is present. A line of code such as cmake_minimum_required(VERSION 2.8) should be added at the top of the file. The version specified may be lower if you wish to support older CMake versions for this project. For more information run "cmake --help-policy CMP0000". This warning is for project developers. Use -Wno-dev to suppress it. -- Configuring incomplete, errors occurred!
Please advise me. Thanks.
I use a Pentium IV PC [Hewlett-Packard HP D530 CMT(DC577AV)] containing the 'Intel Corporation 82865G Integrated Graphics Controller' with an HD TV set as a monitor. I have to use the integrated graphics because I was not able to install Ubuntu with an external graphics card and found no linux driver for the external card. Therefore I have to use a VGA connection.
Under Windows XP the resolution 1920x1080, 60 Hz, works precisely this way. 'Ubuntu 12.04.2 LTS' enables precisely the same resolution and frequency with a monitor that it recognizes, even using VGA connection. But the Ubuntu does not recognize my TV set and, with the TVset, it does not offer the 1920x1080 resolution.
According to https://askubuntu.com/questions/298797/intel-driver-cannot-detect-my-monitor-and-get-native-resolution?rq=1 and http://www.garrypassarella.co.uk/2011/04/23/add-undetected-resolutions-in-ubuntu/ I have got the resolution 1920x1080, 60 Hz for a moment using Terminal
$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0*
800x600 60.3 56.2
848x480 60.0
640x480 59.9
$ cvt 1920 1080 60
1920x1080 59.96 Hz (CVT) hsync: 79.57 kHz; pclk: 206.25 MHz
Modeline "1920x1080_60.00" 206.25 1920 2056 2256 2592 1080 1283 1293 1327 -hsync +vsync
$ xrandr -newmode "1920x1080_60.00" 206.25 1920 2056 2256 2592 1080 1283 1293 1327 -hsync +vsync
and
$ xrandr --addmode VGA1 "1920x1080_60.00"
.
I need to continue adding the resolution into the Ubuntu displays menu because, in a new run, the Ubuntu 'System Settings'...'Displays' offers only the former '1024x768 (4:3)' and '800x600 (4:3)' resolutions.
According to the http://www.garrypassarella.co.uk/2011/04/23/add-undetected-resolutions-in-ubuntu/ :
I see no /etc/X11/xorg.conf
file in that directory. I have tried
gsudo service gdm stop
with a result
gdm: unrecognized service
. I have tried
Xorg -configure
with a result
Fatal server error:
Server is already active for display 0
I am new with Ubuntu. Please advise me, how to add the new resolution into the Ubuntu displays menu, thanks,
Tomas Peceny.
Up to now I have used Microsoft Windows. I am a beginner with Unix generally and with Ubuntu 12.04 particularly. I have got advices to try the system by a command 'Firefox' and then to install a developers tool by a command 'sudo apt-get install gcc'. I have tried to write the command directly to the Ubuntu desktop window; a command line appeared, I have written the command 'Firefox' (without apostrophe characters and pressed Enter key), but it starts no action, though the Firefox browser starts well from an icon left at the desktop window of the newly installed Ubuntu.
I see, that about 'sudo apt-get install gcc' with Ubuntu 12.04 problems do exist and are discussed at the http://askubuntu.com . I have written the command 'sudo apt-get install gcc' to the Ubuntu desktop window, too; the system requested my password and made an icon 'Update manager'. I have installed all 211 updates, but the 'Firefox' nor the other command does not work and the 'Update manager' icon disappeared.
My Canon MG5150 USB printer does not print as a 'generic printer' from the installation.
Evidently I need first beginner's manuals how to work with the Ubuntu 12.04 (pressing F1 does nothing) and what are base commands of Unix. And also how to work with the Firefox browser; I have guessed how to set a bookmark but I do not see how to call it. And also how to make FTP connections and how to transfer files to the Windows XP and from it by a net or by an USB flash. Please advise me which manuals, thanks, Tomas Peceny