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Linux

A free and open-source family of operating systems first started in 1991 and named after its creator, Linus Torvalds.

2,239 Questions

Is Steam compatible with Linux?

Yes. Valve has released the Linux version of Steam, and there is a steadily-increasing number of games in Steam that are playable in Linux (and some of them are cross-platform, like Portal, Team Fortress, Left 4 Dead, etc). As an alternative, Valve also released SteamOS (which is based on Linux).

How can you check if an RPM is already installed on a Linux machine?

rpm -q pkge_name
this com

mand will query the specifid package if it is already existing,otherwise it will give message that package is
not installed.

Can you download Google Earth onto a 64-bit version of Linux?

Yes. Google offers both 32-bit and 64-bit binaries for Linux on Google Earth's download page.

What is the name of the command used to generate the ssh keys for the openssh server?

ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key

ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

for the DSA and RSA host keys, respectively (it will also create a corresponding .pub file). You can of course specify another filename and then move/copy them in place.

How do you login linux server wothout password?

Assuming you're using SSH to log into the server itself?

You'll need to generate a keypair and give the server the private key. There are tons of tutorials for this. Google it.

How do you change the current directory to 'etcjavabin' and append this path to existing PATH settings?

  • To change the current directory to /etc/java/bin, use the command "cd /etc/java/bin".
  • To add the above path to the PATH variable, type export PATH="$PATH:/etc/java/bin".
  • To check whether you have successfully added that PATH, type "echo $PATH".
  • To permanently add /etc/java/bin to PATH variable, edit /etc/profile or ~/.bashrc file and add the command, export PATH="$PATH:/etc/java/bin". (NOTE: After adding, you will need to reboot the machine or type "source /etc/profile" or "source ~/.bashrc".

What is a absolute pathname?

An absolute pathname, is the location of a filesystem object relative to the root directory.

absolute pathnames always begin with a slash (/).

With Absolute pathname you have access to complete file system objects such as directories and files.

Can all Linux distributions use the same applications?

Distributions generally try to maintain binary compatibility, so a binary compiled on, say, Ubuntu, should run fine on Fedora, as long as all necessary libraries are installed. Any free and open-source application can be adapted to any modern distro, so even if a distro doesn't maintain binary compatibility, they can still run the same applications. They just need to be compiled separately.

What is the meaning of backup level 0 with dump?

Linux command "dump" backup 0 means to store everything or full backup.

Which Linux distribution does Linus Torvalds favor?

Linus Torvalds uses Fedora.


He did an interview in 2008 where he talked about distributions. He uses Fedora on most of his computers, but really doesn't focus on the distribution itself.

Here's the link to an article on O'Reilly where the interview is referenced:
http://news.oreilly.com/2008/07/linux-torvalds-on-linux-distri.html

Is tixati good and safe?

Yes, the Tixati BitTorrent client is a good and safe client.

It runs on both Linux and Windows.

What is the purpose of having more than one desktop environment like KDE or GNOME available for Linux?

KDE and GNOME are the result of two different attempts to create a free and open-source desktop environment for Linux. KDE was created first. KDE used a widget toolkit known as "Qt", which was not open-source back then. Since some users wanted one that was completely open-source, even the toolkit, the GNOME project was created. Many users still liked KDE, though. Those who did not want to switch stuck with KDE. Those who insisted on free software chose GNOME. Later, the Qt toolkit was open-sourced, which removed much of the incentive for GNOME to exist, but enough users at that point like GNOME better, so development has continued.

How do you install Microsoft Visual Studio on Linux?

Microsoft does not develop Visual Studio for Linux - the closest available thing is MonoDevelop. It looks and acts similar to VS, and can be found in most distribution repositories

How do you check if a mail server is running?

In a terminal, type "ps aux | grep [insert name of mail server]". If you see more than one process listed, the server is running. Otherwise, it is not.

What Linux distros will run on an HP Pavilion dv4-1125nr notebook?

There is nothing particularly unique about this notebook; any modern Linux distribution should be able to run on it without problems.

What is the major advantage of a hash table?

The major advantage of a hash table is its speed. Because the hash function is to take a range of key values and transform them into index values in such a way that the key values are distributed randomly across all the indices of a hash table.

What is the output of the command 'echo shell shell'?

The output would be 'shell shell' (without the quotes, of course)

When was Linux RedHat discontinued?

Red Hat Linux was discontinued in 2004 in favour of Red Hat Enterprise Linux for enterprise environments. However, Red Hat Linux still exists as "Fedora", free for home use, developed by "Fedora Projects", though the entire line is no longer commercial and only supported by the Linux community.

How do you install Linux?

The installation methods of distros varies tremendously, so it is not possible to give a comprehensive how-to of installing all of them. Most of them are fairly simple, but some require years of experience and / or technical knowledge.

Assuming you want to install a fairly typical distribution, such as Ubuntu, Debian, Fedora, or OpenSUSE, you will first need a CD. Ubuntu will mail free CDs out to anyone to asks The others require you to download what is called an ISO image. This is a single file that contains all of the data that will be put on a CD, in a special format. To create a CD, you will need a CD-burning program such as Nero, or, if you have never burned an ISO image before, try ImgBurn or Infrarecorder. Tell your program of choice that you would like to burn an image to a CD, and select the ISO file you downloaded. Insert a blank CD, and tell it to burn, preferably at a low speed.

Now that you have an install CD, you need to prepare to install. Back up any files that you have in Windows, just to be safe, or if you plan on getting rid of Windows altogether.

Reboot the computer with the CD in the drive. If the computer does not boot from the CD, enter the BIOS and set the boot order to boot the CD drive first. If you have received what is called a "LiveCD", the CD will boot into a fully featured preview of what your Linux system will look like. If it is not a LiveCD, it will probably just have text menus or a simple GUI. Start the install process by resizing the Windows partition to make room for Windows, or just delete if you do not want Windows. Most installers have a "guided" option to configure the partition sizing automatically for you.

Proceed with specifiying any usernames and passwords, timezones, languages, etc... The installer will copy files to the hard drive and set up the system, and then prompt you to reboot. Remove the CD and restart your computer. You will either receive a menu, often called "GRUB" or "LILO" if you are dual-booting, or you will simply boot directly into Linux.



How do you use Linux?

Linux, like Windows, is an advanced operating system, and it's usage cannot be explained in a single paragraph, and probably not an entire page. I'll only try to provide the most basic instructions on how to operate a typical Linux system.

Commands that you can use on the command line:

cd - changes the current directory. cd /etc would take you to the /etc directory on the root partition. cd etcwould take you to the etc directory in the folder you are already in.

ls - Lists files and folders in the current directory.

mkdir - Makes a directory. Example: mkdir folderwould make a directory called "folder."

ifconfig - Displays current networking information, like IP addresses.

top - displays currently running processes / programs. Press Q to quit.

nano - a simple text editor found on most Linux systems. Exit by pressing Ctrl- X.

How to use GNOME (found in Ubuntu and Fedora):

Applications can be launched by pressing the Applications button on the top taskbar. Think of it as the Start menu being at the top of the screen. You can shutdown by clicking the door near the clock.

How to use KDE (found in Kubuntu, Mepis, and OpenSUSE):

Applications can be launched by clicking the KMenu (a blue K in Kubuntu, a blue mountain in SimplyMepis, and a Start button in OpenSUSE) and selecting programs from the list. This should be very familiar to Windows users.

How to use JWM/Fluxbox/Blackbox (found in Puppy Linux and Damn Small Linux:

Right-clicking anywhere on the desktop will cause a menu to pop up. This menu is like a mini Start menu, where you can selectany application you want. JWM also has a Start-like button that launches the same menu.

Where can free downloads for DJ mixing decks be found compatible with Linux?

IDJC is probabally the best program for this. It can be used with Icecast, Shoutcast, or without either. It has dual mixing decks, as well as support for playlists, bumpers, Skype call in, etc.

What is used to enable windows server 2008 to support unix and Linux clients?

The Subsystem for UNIX-based Applications (SUA)

For a UNIX or Linux client, SUA creates a multiuser environment complete with commands, case-sensitive abilities, programming tools, shells (runtime environments), and scripts. With SUA installed, even UNIX/Linux programs can be ported over to Windows Server 2008.

How do I override log in password on Linux OP system?

Answer - Not unless you're RootYou can't. Linux systems are completely secure, and it's not a simple matter of overriding the password with some keystrokes. If you want to access information on the harddrive (as long as it's not encrypted), you will have to reboot the system with a different OS (or use a Linux live CD, such as Knoppix) and navigate the directory struction to the files you want. However, you can't RETREIVE a password on a Linux system without some serious code cracking hardware.

If you have Root permissions on a computer you can reset any other users password to your choice.