Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Sony Vaio Laptop not booting - black screen

I have a Sony Vaio laptop - not sure on exact model as I am not at home currently - can post later if required. I have it dual boot running Linux (Ubuntu 12.04 LTS (Precise Pangolin)) and also ...
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67 views

qtnx delete session

From the graphical interface, when you connect to a host, it is possible to create a new session, but not to delete an existing one. Where is that information kept (in which file) in my computer, so ...
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How do I list the files installed by a deb package?

I'm an Ubuntu user and I install packages with the apt-get. For example: sudo apt-get install hadoop-0.20 After I install the package, there will be files in /usr/bin, /usr/lib/hadoop etc. Are ...
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1answer
713 views

deleting gmail messages from alpine

I am using gmail as my email server and alpine 2.02 as my email client. Gmail has a rather non-standard IMAP setup and consequently, in order to delete a message (rather than archive it), one must ...
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3answers
527 views

How do I hide files inside of an image without using any stenganography tools [duplicate]

Possible Duplicate: Steganography software I want to hide files inside of a picture. The files may be music or video. Is it technically possible to do this? If so, how? I searched on ...
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1answer
587 views

Deleting and extending the partition from a windows-linux dual boot

I'm following the steps mentioned in this site Removing linux from TN government laptop It is clear till step 5, I can simply delete the linux partition and make it as a new drive. Do I have to ...
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39 views

Ubuntu accessing the Virtual BOX DSN

I have Ubuntu 12.04 Installed on my System and have installed Virtual box 4.1.12. and Having Windows7 running in my VBOX (Guest Addition Installed). Now I have crated the DSN on VWin7 Instance which ...
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1answer
269 views

Move one directory of files into another while maintaining directory structure

On Linux, I have directory #1, for example: /foo/file (edited) /foo/bar/foo/file6 (edited) And directory #2, which may contain some of the same files: /foo/file /foo/file2 /foo/bar/file3 ...
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1answer
154 views

dual monitor: move all windows from 1st monitor to 2nd monitor

Is there a way to move all windows from the 1st monitor to the 2nd monitor while the 1st monitor is turned off? This is on gnome 2.
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2answers
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Mutt with GPG Password Protection

I got Mutt working with the default IMAP password management configuration with this line in my config: set imap_pass = XXXX Which is obviously not secure. I looked at this ...
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1answer
5k views

Is there a way to disable Intel SpeedStep steppings on an Ubuntu Server using a command line application?

We cannot disable it using the BIOS, because Turbo gets turned off as well as a side effect (what a crappy BIOS!). I am looking for a simple command line tool for Ubuntu 12.04 LTS Server that can do ...
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1answer
246 views

My mldonkey doesn't work due to “Too many open files”

On my NAS (an incredibly basic and reliable DNS-323), I use mldonkey to download files. It worked quite well during the last 3 years, but it seems now mldonkey doesn't work. Indeed, each time I start ...
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2answers
799 views

Change the default URL for right-click “Search Google for…” menu in Firefox

I'm trying to change the default URL that Firefox has for Google. I don't want to change the search engine itself. I tried changing keyword.url in about:config, but it doesn't work. I tried the add ...
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1answer
2k views

Interpreting statistics from netstat -s

I'm running netstat -s on my Ubuntu box at home to get network interface statistics. There are a bunch of numbers printed out, like this: Ip: 10256 total packets received 8 with invalid ...
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2answers
7k views

What's the difference between “su” with and without hyphen?

I'm quite new to Linux terminal and I'm not quite sure what the difference between su with a hyphen and su without a hyphen is, for example: su - username vs. su username. I looked into the ...
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1answer
170 views

Re-assembling a linux RAID on different system

I am in the process of shopping for drives for my Linux Server (CentOS 6.3). I think I have it narrowed down to RAID 5 or RAID 10 (have to see what hard drive prices do) and using the Linux Software ...
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2answers
7k views

How can I use SSH with a SOCKS 5 proxy?

I don't know much about proxies in general, and especially not SOCKS5 proxies, so sorry if this is a newbie question but I haven't been able to find the answer online or in the man pages. I have a ...
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1answer
137 views

Trying to setup sudo user

I'm trying to setup sudo without no password but still I get prompted for password, I'm using ubuntu, here is the relevant line from the sudoers configuration file : gandalf ALL=(ALL:ALL) NOPASSWD: ...
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1answer
575 views

Can't save PATH or JAVA_HOME variables, Oracle Linux 6

I am on Oracle Linux 6 and I am trying to add the path: /root/jrockit-jdk1.6.0_33-R28.2.4-4.1.0 to the PATH and JAVA_HOME variables. So, I login as root and I try: export ...
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Is it possible to restore from Fedora automatic backup?

I've accidentally deleted everything using: rm -rf /* I did not know what the commands was, I thought it would only delete the folder I was in. Now nothing works, not even terminal. Actually after ...
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3answers
1k views

How do I download a set of files according to a pattern?

Here's what I'm trying to do: Download a webpage Find all strings matching a regex in it Prepend and append string constants to them to form fully qualified URLs Download all of them This should ...
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1answer
4k views

Unix/Linux: recursively search for files containing a string [duplicate]

Possible Duplicate: How to Combine find and grep for a complex search? ( GNU/linux, find, grep ) I have a directory hierarchy of files (some of which are plaintext and others are binary). ...
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0answers
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32-bit or 64-bit OS? [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I just built a new box which has an i7 3820 running as CPU. I usually run linux distros on my boxes. Is it best to go with a 64-bit distro ...
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1answer
78 views

How Linux Emulators work in Windows?

Obviously, they create a linux environment for linux applications to run in windows. But, what kind of techniques are used for this? Is there any special mechanisms followed?
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4answers
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Determine if output is stdout or stderr

How can I determine if what a process is outputting is stdout or stderr?
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3answers
9k views

TFTP get call for two files

I am having a very strange problem with the following TFTP command to get two files from a host IP: tftp 173.32.52.12 -c get MyFile1.txt MyFile2.txt The command executes just fine but when I go to ...
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6answers
557 views

Why do Linux systems have multiple virtual consoles?

We can switch to a text console by pressing Ctrl+Alt+F<1-7> on the keyboard. What are the uses of these consoles, and why are there multiple consoles?
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1answer
407 views

Using time to get CPU usage of a process, but not its children

When using time some_executable - the system and user CPU time returned actually includes all the CPU time of any child processes launched by the named executable (this was news to me, actually). I ...
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1answer
159 views

RDP not working in Linux after patching MS12-020

Our company recently applied patches for a Microsoft vulnerability (MS12-020 - Vulnerabilities in Remote Desktop Could Allow Remote Code Execution) which affected RDP to Windows servers. Since this ...
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2answers
4k views

/arch/setup is not gonna work, why?

I'm completely new to Linux, the only reason that I'd try it out because I've seen it in a video (Arch Linux) and I liked it. So I downloaded it and loaded it up in a virtual machine (virtualbox). I ...
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1answer
113 views

How remap ctrl + k to ctrl + v in linux?

I use a Dvorak keyboard, and I want to use the shortcut like a Windows/Dvorak. I've tried to use autokey but doesn't work very well. I'm interested in a solution on Xorg directly, of the style of ...
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2answers
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can't unmount cd image in virtualbox

This is a followup question from Can't save data or settings in VirtualBox In summary: I can't save any data in my fedora inside of Virtualbox. I went to the devices tab, then cd/dvd devices, ...
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1answer
287 views

Tool or web app for Microsoft Office documents preview

I need a free tool for Linux or web service to create previews for MS Office documents automatically. Tools I tried: https://docs.google.com/viewer LibreOffice unoconv All of them have some ...
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1answer
859 views

How to mount a shared folder on Windows 7 host as home directory for Linux guest under VMware Player

The host computer is running Windows 7 Ulitmate, the guest OS will be Linux (the brand to de decided later; likely Debian 4 or CentOS 6). The hypervisor is VMware Player 4. My problem is: how do I get ...
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3answers
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How can I copy a single file and maintain directory structure?

How can I do this on the command line? e.g. copy /dir/another/file to /tmp/ so I have /tmp/dir/another/file
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2answers
389 views

Input focus stays with vmware guest when host gets locked

I am using a combination of xautolock and slimlock to automatiacally lock my machine if it does not receive input. ~/.xinitrc: xautolock -locker /usr/bin/lockify.sh -time 5 & ...
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1answer
286 views

RedHat lost space

I have a problem with one server and I really don't know what happen, so I will appreciate any help/suggestion. On one partition have 42GB space. yesterday i saw that this partition is full 100% so i ...
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1answer
2k views

How can I perform a full texlive installation (all packages) in CentOS?

Title say it all, how can I install texlive and all the packages so I can run tex2pdf on CentOS? I'm rather used to Ubuntu and all this yum business is driving me nuts.
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How to create an ubuntu user with partial sudoer rights

Am wondering whether it's possible to create a user in ubuntu 11.10 server with custom sudo rights.I mean by that an use who can start and shutdown the box but who can't access /var/www for example or ...
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5answers
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How to find folders over 1GB and execute another command in linux terminal?

I want to find the folders which sizes are over 1GB and then if they are over then I want to erase them. I found some commands like find /some/path -type d -size +1G -exec ls {} \; or du -h ...
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1answer
383 views

X11/xorg map ctrl j (or ctrl m) to return; OR control codes in GUI / X11

Terminal application and editors like vim (and emacs I think) make good use of control codes. I.e. Ctrl + M is carriage return and Ctrl + J is line feed. Both of these can be used to insert new lines ...
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1answer
470 views

linux route command not working

I use route command to add new route in my routing table. But it my new root is not added. Also it doesn't show any error for my command. Here is the console #route add ::/0 via fe::2 route: ...
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3answers
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Creating application desktop shortcuts

I'm using Ubuntu 12.04 LTS with Gnome classic and am trying to create desktop shortcuts for applications on the Applications menu, so I can drag them to the bar on the bottom of the screen. This ...
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2answers
2k views

Sudo can not find binary

I have a problem. Lately I've installed nodejs (if you don't know what it is, it does not really matter, could be anything else) from sources to /opt/node: $ ls -la /opt ... lrwxrwxrwx 1 root root ...
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3answers
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Only 3.2GB of 4GB RAM detected on 64-bit Debian

I'm running Debian Squeeze (x64): # uname -srvmo Linux 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012 x86_64 GNU/Linux I have 2 compatible 2 GB sticks of DDR2 in my G31M-S motherboard. It ...
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1answer
1k views

Can't save data or settings in VirtualBox

I'm new to VirtualBox. Someone helped me set up a Fedora 16 installation on VirtualBox. The problem is that I can't save anything. I first tried setting up LAMP and installed Apache and MySQL from ...
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3answers
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Need to transfer files(No SCP) from Linux to IBM-AIX

I need to transfer a tar.gz file from RHEL5 to IBM AIX... The IBM AIX does not have scp and I dont think, I could install, as I am just using the system for temporary purposes. Is there an alternative ...
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0answers
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Alternative (pref. mature) Linux PAM authentication methods?

I'm looking for alternative, non-keyboard-password authentication methods to unlock my laptop. Whatever authentication it is, it should be quick and convenient to perform and relatively secure. Yes, ...
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2answers
1k views

Backing up a VirtualBox VM

I've got a VirtualBox Windows 7 virtual disk image (.vdi) disk. This .vdi boots Linux 64 bit on my 32 bit ubuntu on a 64-bit machine with virtualization enabled. I have installed a lot of programs in ...
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1answer
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How to kill an invisible process?

I have a program that crashed, its GUI is frozen, and I would like to kill it. However there is no trace of it among the current processes. I tried both top and ps -A, but I got nothing. The ...