What is the Ubuntu Server used for?
The Ubuntu Server is used to see how many of one server is being used in a specific area, and is also used as a web server. It shows symbols over places in America and Europe where people use it.
basically, if i understand your question, you want to know in plain ol' english what a kernel is. Basically it is just the main part of the operating system that gets information from applications and submits it to hardware for processing. If you want more specific info regarding a kernel, check out the wikipedia page for it.
How-to check printer queue for ubuntu?
press 'alt+f2'
type system-config-printer
right click on your printer
select view printer queue
What is the most powerful text editor in Ubuntu?
Different users have different opinions about what the best text editor is. Believe it or not, this was a major flamewar topic throughout the 80s and early 90s. Vi, Vim, eMacs, and nano are all popular choices for command-line text editors. There isn't as much flaming in the GUI arena, but there is an even larger array of choices there.
What is a good Linux distribution for an offline computer?
For the most part, Debian, Ubuntu (and derivatives), Gentoo, and Arch the top few of the most popular distributions for games (not to mention Steam can run on these, and that SteamOS was originally built on top of Gentoo, then later changed to a Debian base).
Which command do you use to edit password file in Linux?
Hmm... The recommended method of changing your password on Linux (or Unix for that matter), is to use the passwd command.
To change another user's password, switch user to rootand issue the command:
# passwd other_user
Your question seems to indicate that you really want to directly edit your passwd and shadow files on your Linux distribution. Unless you really, really know what you're doing, I recommend against this.
If you do know what you're doing, use the vi (or other editor - vi is the best editor ever made though) editor and directly edit your /etc/passwd and /etc/shadow files.
Of course, should you subsequently discover you can no longer access your system, it may behoove you to go back to your Linux/Unix basics and begin all over again. May I suggest, as an excellent starting point, learn all that you can about the world's most wonder editor, the editor vi. :)
Does Ubuntu support dual processors?
Yes. By default, Ubuntu has supported multi processing since Ubuntu 5, due to the default kernel that loads is and SMP kernel. In other words it assumes a system has multiprocessing. If of course you don't, there is no degradation in performance.
How do you get wired and wireless on ubuntu 9.10?
For wireless cards that do not work out of the box, you will need to identify the wireless chipset used. You can do this by running "lspci" in a terminal, and looking for names such as "Broadcom, Realtek, Atmel, etc... Afterwards, you can install a third-party module by connecting via Ethernet and running
sudo apt-get install [package name]
The package you will want to install depends on the chipset.
Atmel - atmel-firmware
Broadcom - bcm43xx-fwcutter
Do you have to have Linux to install Ubuntu?
You can update Ubuntu later as well without any issues. ... If there are other operating systems installed, you may get the option to install Ubuntu along with them in dual boot. But since your goal is to only have Ubuntu Linux on your entire system, you should go for Erase disk and install Ubuntu option.
Read More:- hands-on.cloud
How do you install sound card drivers in Ubuntu?
Installing a software for any type of HARDWARE is called as a DRIVER. U need to find out the driver program for your Hardware and install it and then install a hardware that u want to be recognized by an Operating System that your machine uses. U can download the driver program on your hard-drive and double click it to install. Then simply reboot your machine (ofcourse after installing the hardware). The OS is your machine will recognize the type of Hardware that you have installed, and then you can configure or USE that hardware ... in your case Sound Card .... :)
What appears when you right click the root window an how can you use this object?
A window will prompt you and it will state David L. Swims
Is Ubuntu a good operating system?
Ubuntu is a solid Virus free operating system. It gets updates on a daily bases with a new version out every 6 months. Its all free and works fast with a huge community of support behind you to help you out with any problems. All software and download are free and all can be downloaded within the operating system. Couple of clicks and its installed with no effort. The operating system can be customised into almost anything you can imagtion. There is nothing you cant change.
Which command may be used to change to the root and start a new shell?
That would be the chroot command. Usually when this is used one mounts the pseudo filesystems (/dev /sys /proc) and then explicitly invoke the shell they want to use in the new root environment, like so:
# chroot /mnt/debian /bin/bash
There are other options, refer to the chroot man page. What this command does is tells the current session that / should now be at /mnt/debian and to invoke /bin/bash as soon as the root is set up.
Changing root is primarily used in two ways. One is to effectively set up a rescue environment for Linux from live media so you can use the tools of the target system and not the host system to do your work (Pretty much essential for adjusting kernel stuff/installing bootloaders correctly, the other is actually fakeroot: It's how most Linux package management systems actually work, by creating a fake root tree so that packages have a tree that exactly duplicates the location the files would be in when installed. This way the package manager simply has to extract the file to / to install the files precicely where they need to go. (Most package management has a little more complexity than this, but this is how package managers work in terms of the actual file management.)
In January 2012, the people at Ubuntu estimated that 20 million people use their operating system.
What is the function of the Unix kernel?
The kernel is the essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. A kernel can be contrasted with a shell, the outermost part of an operating system that interacts with user commands. Kernel and shell are terms used more frequently in Unix operating systems than in IBM mainframe or Microsoft Windows systems.
Defnition from Wikipedia:
In computer science, the kernel is the central component of most computer operating system(OS). Its responsibilities include managing the system's resources (the communication between hardware and software components). As a basic component of an operating system, a kernel provides the lowest-level abstraction layer for the resources (especially memory, processors and I/O devices) that application software must control to perform its function. It typically makes these facilities available to application programs through interprocess communication mechanisms and system calls.
These tasks are done differently by different kernels, depending on their design and implementation. While monolithic kernels will try to achieve these goals by executing all the code in the same address space to increase the performance of the system, microkernels run most of their services in user space, aiming to improve maintainability and modularity of the codebase. A range of possibilities exists between these two extremes.
How do you share files on Ubuntu?
It is as simple as right clicking on the file or folder and changing the Share properties of the file/folder. You can choose what access you want on the folder regarding read or write.
For a user most system calls are simply wrapped in simple command utilities such as chroot and mkdir and the like.
But system calls proper are made by software, plain and simple. Usually how it works on the low level is dependent on the architecture being used. For "simplicity" I'll refer to x86(_64).
When a system call is made, it's done by putting the parameters of the call in a series of general purpose registers in the CPU, then either signaling an interrupt or, in the case of 64-bit x86, actually using the syscall instruction.
What happens then is a context switch occurs, and the CPU is switched over to kernel mode and the kernel itself is actually running now and has your system call. Meanwhile, the process that made the system call is put in the "blocked" list until the needs of the system call are met.
Remember that a system call is a simple request for a service from the operating system by something in user space. Things in user space can't do a whole lot themselves in reality, and have to ask the operating system for a lot of support.
While an application can do a lot with the CPU, as soon as it needs any sort of hardware support, or more memory, or less memory, it has to ask the operating system for it. For example:
I wrote a text document in vi. To save, vi has to make a system call (Actually, a LOT of system calls.) to the kernel to actually write the buffer to disk.
Think of system calls as being among the building blocks of the actual execution of software on *nix systems. The process will happily use CPU instructions without operating system help, but applications make constant use of hardware in some way, and to do that, they have to use instructions for the kernel, who may or may not actually GRANT the requests based on permissions or sanity of the system call, as opposed to a CPU which will MOSTLY do whatever it is told even in user mode.
The only time a CPU will actually reject an instruction is if its bonkers. Either it's an opcode that makes no sense to the CPU or, more commonly, it is an opcode that requests memory be used in some way that is flat out disallowed in virtual memory. In those cases the CPU will usually fire off an exception and force a context switch to the kernel to handle the error. It'll be up to the operating system how to proceed, but usually, except in cases of page faults, this means death to the offending process. The cases where the CPU will reject an instruction because it's plain invalid or violates memory access rules is called a "fault."
How can you delete an unallocated partition in Ubuntu Linux?
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After MUCH frustration, digging, trial-and-error, I have answered my own question.
The problem, as you may recall, was that I could not delete two "unallocated partitions on my hard drive. All the options (unmount, resize, delete, etc.) were grayed out. I could not unmount them because they were in use.
The answer was to download the GParted LIVE Cd from: http://gparted.sourceforge.net.
I simply inserted the GParted LIVE CD, rebooted, and -- voila! -- I could move, resize, and delete all my partitions at will!
I hope this post can help others with a similar problem.
Lloyd
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How often is new version of ubuntu released?
New releases are released in April and October (every 6 months), hence the version number ending in .04 and .10.
Mark Shuttleworth was the man who began with the idea of Ubuntu. However the concept of Ubuntu is much older, the concept behind the word is translated many ways but all boils down to being a good neighbor and treating others well.
The technology is not entirely the creation of Mark Shuttleworth, it is based on the work of thousands of others in the free and open source movement many of whom contribute to the Debian project which is the base of Ubuntu
sudo is a Linux command used to execute programs as the root, or "super user." sudo is a shortening of "super user do." One uses sudo when they need to run a command or program as root, but do not wish to log out or switch their entire shell to root privileges (like they could do with the su command). The file sudoers defines per user or per group what commands can be run with sudo. This file is edited with the command visudoers
What requirements do you have to have to run ubuntu?
The following are the system requirements for Ubuntu as of the 9.10 release:
How do you install an RPM package in Ubuntu?
Generally speaking, you do not need to install RPM packages in Ubuntu. These are designed for other types of Linux distributions that use a slightly different way of installing software. The programs necessary to install such a package are not found on an Ubuntu system. Most programs that could be found in an RPM package are also available either in a .deb package (which you can install on Ubuntu) or in Ubuntu's repository, where it can be installed via Synaptic.
If you absolutely need to, you can convert RPM packages by using a program called "alien." This converts the RPM package into its .deb equivalent. Note that this doesn't always work, and the installation could break your system in rare circumstances. To convert the RPM package and install the program, use the following commands:
sudo alien -k rpmpackage.rpm
sudo dpkg -i debpackage.deb
How do you dual boot Windows Vista and Ubuntu correctly?
Install Vista first. During the installation of OpenSUSE, you will be prompted if you would like to partition the hard drive to make room for OpenSUSE, or format the drive entirely for OpenSUSE. Make a partition of at least 6 GB, plus a swap partition of 1 GB. The installer will automatically install a bootloader known as GRUB, which can boot Vista or OpenSUSE at your choosing.
What is the meaning of the word Ubuntu?
Ubuntu is an operating system that can run on almost any computer. It is Linux based, and thus can be edited by many people. It is free to install and contains many free programs, so it is a great low-cost alternative to Windows.
Ubuntu is constantly being updated by dozens of people, so it is an operating system that fits the needs of many types of people.
Ubuntu is an African word meaning 'Humanity to others', or 'I am because we are'. The Ubuntu distribution brings the spirit of Ubuntu to the software world. This is where the name for the OS came from as it was developed by a South African named Mark Shuttleworth.
Ubuntu is a community developed, Linux-based operating system that is perfect for laptops, desktops and servers. It contains all the applications you need - a web browser, presentation, document and spreadsheet software, instant messaging and much more.
If you want to download "Ubuntu" check out the related links below.