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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Viewing an already running application through ssh?

So I have Ktorrent running all the time on my remote host, and I have to change some of the settings on it every once and a while that can't be changed through the web ui. So I was wondering if there ...
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1answer
3k views

Remount filesystem readonly

I want to remount /dev/sda2 [mounted on /var/www] as readonly # mount -o remount,ro /var/www mount: /var/www is busy There are no open files on that filesystem # fuser -v -m /var/www ...
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1answer
3k views

How do I recursively touch files matching a pattern

Within my ~/docs directory, I want to "touch" all files ending with .txt How can I do this?
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4answers
5k views

Unable to use cloned VM, OpenSUSE, VirtualBox

I've cloned a VM and now while booting it I see a message: Trying manual resume from /dev/sda1 Invoking userspace resume from /dev/sda1 resume: libgcrypt version: 1.5.0 Trying manual resume from ...
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1answer
264 views

Bad chars in gnome-terminal vim

I'm using Fedora 17 with gnome-shell. I've installed Ubuntu fonts, and I'm running vim inside the gnome-terminal. Quote often, I get the following problem: What could be the problem? The problem ...
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0answers
687 views

Can't install umlet under Linux

I'm trying to install umlet. I have tried quite a lot of different configurations, but none worked. Whether trying from the .jar itself (java -jar umlet.jar), whether using it as an eclipse plugin, or ...
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1answer
487 views

Why /home folder is missing from my backup archive created by tar?

So I'm doing full backup of my VPS using the following command (as root, of course): tar czvf 20120604.tar.gz / Everything seems to be fine, all files seem to appear in the list. The size of ...
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1answer
211 views

How to read iptables -L output?

I'm rather new to iptables, and I'm trying to understand its output. I tried to RTFM, but to no avail when it comes to little details like these. When iptables -vnL gives me a line such as: Chain ...
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1answer
123 views

Regex to join fields in a CSV

I have a CSV with over 2 million records in it with the following format. path;name;extension;size;date;user /foo/;difacs;cgi;3,795;18-07-2011;Unix User\pads ...
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1answer
167 views

“Steal” cores to other users: reduce user's processes priority

I'm working on a shared linux machine with multicores where I do have admin rights. Is it possible to freeze all the processes of other users (or give them less priority to access to the CPUs) so that ...
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0answers
334 views

UNetbootin installation of Ubuntu Server fails and restarts computer

I tried to install Ubuntu Server from a flash drive using UNetbootin, because my optical disc drive is broken. When I created the bootable drive using UNetbootin, there was no problem. When I tried ...
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3answers
13k views

How to copy a file to a remote server using the command line?

I am trying to copy a file from my desktop to my remote server using the sudo command. I am doing this from the remote machine since I know the password for this machine and I do not have a password ...
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0answers
38 views

Once a TrueCrypt partition has been unmounted, how do I power off the USB port? [duplicate]

Possible Duplicate: Powering down external hard drive, flash drive, etc using the command line in Linux After umounting a device it still appears to be attached when I run the command ...
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1answer
439 views

What is the difference between new and extra packages when running the command apt-get install in Linux?

When I attempt to install a particular package I get the following output. I had a read of http://www.debian.org/doc/manuals/debian-faq/ch-pkg_basics.en.html#s-depends however it is not clear whether ...
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3answers
3k views

Redirecting stdout to program argument

I run a Minecraft server on my Arch Linux laptop. The server software for Minecraft runs as an interactive program on a command line, so I start it in a detached screen session, allowing me to ...
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0answers
548 views

Resume interrupted multiple-file disk images created with dd?

This is the effort to recover a failed hard drive containing several important research works. To sum up: with the method I tried (described below) I could not resume failed multiple images created ...
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1answer
10k views

How to install GNOME desktop from DVD on CentOS 6 using the command line?

I have installed CentOS 6 in Virtualbox. Although I have chosen to install General Purpose GNOME Desktop, the GNOME desktop does not start. All I get is a black and white text prompt. I would like to ...
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1answer
9k views

How do I install a crx file on Google Chrome Dev?

I'm using Google Chrome 21 Dev and I can't install .crx files. I download them, but no popup appears asking if I want to install it. Any suggestions?
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2answers
481 views

Motherboard/PSU crippling USB and Sata

I very recently bought a new desktop computer. The motherboard is: Z77MX-D3H and the power supply is ocz zs series 550w. The issue I have is that once I boot to the operating system (I have tried ...
4
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1answer
8k views

Configure permissions for /dev/ttyUSB0

I'm trying to communicate with an Arduino from Ubuntu 12.04. When plugging in the USB cable, the arduino's serial port occurs as /dev/ttyUSB0. When I try to connect to it using moserial, I'm getting ...
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0answers
59 views

The wireless connection could not be detected by other computer

I tried to configure router PC in my Linux Ubuntu 10.04 . I use 2 connection to connect 2 clients. The first computer uses a LAN connection and the second computer uses a wireless connection. When I ...
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3answers
11k views

How to change pass phrase of full disk encryption?

I installed Ubuntu 12 with full disk encryption, and now I want to change the pass phrase. How can this be done?
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2answers
2k views

How can I manually delete my Ubuntu partition?

Can anyone tell me how to delete Ubuntu from a Linux / Windows dual boot system without harming Windows? I ran sudo fdisk /dev/sda in a linux terminal and got the following output: /dev/sda1 - ...
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1answer
17k views

Using multiple USB webcams in Linux

Running more than one USB webcam in Debian/Linux results in the the following error: libv4l2: error turning on stream: No space left on device VIDIOC_STREAMON: No space left on device What ...
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1answer
612 views

Snort install issue on debian 6 with libpcre - libpcre library not found

I've read the manual on snort.org for installing snort on Debian but am still having an issue. Does anyone know how to resolve this? I've tried installing the libpcre3 amd libpcre3-dev packages by ...
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3answers
4k views

Watch Filesystem in Real Time on OS X and Ubuntu

I'm looking for a CLI tool which will watch a directory and spit out the names of files that change in real time. some_watch_command /path/to/some/folder | xargs some_callback I'm aware of inotify ...
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1answer
888 views

Improving wifi connections in linux

I have a new laptop now with Ubuntu installed. The wifi at the office is much spottier than it used to be in my old computer. (It sometimes fails to connect, and sometimes drops the connection.) I'm ...
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1answer
419 views

Linux, make shorcut keys and FN key always active

If I play full a screen game under Linux (Ubuntu 12.04 using GNOME Shell 3.4) I can not use some of my Fn keys, nor the GNOME Shell shortcuts. For example the Fn+volume, or brightness doesn't work, ...
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1answer
2k views

Cannot set wkhtmltopdf margins (top and bottom)

I am using wkhtmltopdf 0.10.0 rc2 on Ubuntu (Linux 3.2.0-24-generic #38-Ubuntu x86_64 GNU/Linux). The problem I'm experiencing is that I can't create PDFs with margin-top or margin-bottom. I'm not ...
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1answer
332 views

System-wide auto-complete word list syncing/integration?

I've been thinking that convenient auto-completion is my must-have feature of the text editors and word processors that I use. I wonder if anyone knows of a program or library that implements a ...
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0answers
192 views

Is this valid JFS partition?

My teacher gave my his laptop (with Fedora 16 on it) and compact flash card with data. He wants to have access to files on card, but he couldn't get access to it. The problem is Linux doesn't know ...
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1answer
120 views

Using the link command to keep backups on another drive

I have a folder that contains a not so large amount of space called /data/backup. I have been told that if I link that folder (/data/backup) to an even bigger folder area like /bigdata/backup for ...
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1answer
148 views

“Reroute” traffic using a Debian VPN server

I've set up a Debian VPN server, to which I connect with my iPhone. It works perfectly, I can browse the web, and see "local" pages. My question is, if it's possible to "reroute" traffic. Here's an ...
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2answers
915 views

Why does my MAC address reset after reconnecting?

I use Ubuntu 12. I'm changing my MAC address with ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx, which works. However when I restart my connection, my computer resets the MAC address to my original MAC ...
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2answers
606 views

In Linux, is it possible to get a listing of drives' disk space usage that also shows volume labels?

I know about df, of course, but df does not output volume labels. I have 5 USB hard drives plugged into my NAS box, and would love to know which is which. Current df output: Filesystem ...
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1answer
332 views

NAT works for Windows guests but not for Linux guests

I have just updated to VMPlayer 4.0.3 (from 4.0.1) on a Windows 7 host. All the various guests are configured for NAT networking and DHCP, and before the upgrade every OS could reach out the ...
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4answers
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Linux Both Case Sensitive AND Case Insensitive and Always Inconvenient?

I'm using Ubuntu 10 and I'm quickly finding out that it's case sensitive when it's inconvenient for it to be so (like when autocompleting file paths with tab in terminal) but also case INsensitive ...
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2answers
90 views

Loading and running remote applications with Linux. Not ssh

I am wanting to load an application from a remote Linux pc and run it on the one that I am sitting at. My goal is different than just using telnet or ssh, because by doing that I would still be ...
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1answer
395 views

Problems with sound and flash in Ubuntu 12 [closed]

I'm having these problems: a) I can't have music playing and at the same time watch a video en youtube. If music is playing, flash is muted, and vice versa. b) Sound has too much bass. I partially ...
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1answer
1k views

Changing network computer name

I can't find a simple tutorial how to change my computer name under which is it visible on the network (Ubuntu 12.04). It's quite simple on Windows 7 but it looks like there's no such an option on ...
9
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1answer
21k views

How to disable Auto-Mute Mode?

In alsamixer, there is an option called "Auto-Mute Mode", and it's enabled by default. But now I want to disable it. I've tried different keys but failed. Any idea? 0_0
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3answers
4k views

Rsync as another user (www-data)

I usually use a graphical SSH client to sync a local and remote directory. And I have to set the ownership of all the files from root to www-data. Can I do the same with Rsync, only that I do it as ...
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3answers
6k views

How to monitor bandwidth on a Linux router by LAN IP

There are plenty of ways to monitor traffic on a specific interface or even by port. But if I am on a router and suspect one of the workstations is using more bandwidth then others, how to check?
0
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1answer
333 views

“shell not found” on start of backtrack 5

I am using backtrack5 in VMware on my system. I was trying to change my default shell to ksh. After executing the 'chsh' command. On restarting the OS, it shows "Cannot execute ksh: no such file or ...
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1answer
530 views

How small can/should I make my partitions, on a dual boot with a shared middle drive?

My machine is currently split into 3 user partitions (plus however many Windows and Linux have decided to slyly create) Which are C: Windows 7, D: Data, and E(?): Ubuntu. I'm considering wiping my ...
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2answers
560 views

Is there a way to remove root requirements for a specific command in linux? If yes, how so?

I'm using Ubuntu 12.04 LTS, and I'm trying to make it so that the specific command dhclient doesn't require root privileges. I've done some research that leads me to believe I could unlock an "su" ...
2
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1answer
120 views

Linux “find -regex” doesn't handle binding

I have the following files, and need to match them like: ./foo.bar1.sh -match ./qux/foo.bar2.sh -match ./foo.sh -match ./baz.sh -no match ./foo.bar3 -no ...
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3answers
538 views

vim is slow, even on console without X running

I'm using Arch Linux and I installed vim from the official repos. It runs OK, but when I have syntax and cursor highlight turned on, it is extremely slow. I already trying running only the 'core' ...
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1answer
250 views

How does cpu speed stepping effect the cpu usage percentages reported in (for example) htop?

How does cpu speed stepping effect the cpu usage percentages reported in (for example) htop? How about the normal top? So, if my cpu is stepped down to 800mhz with a full speed of 2ghz, does 5% used ...
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1answer
4k views

Ubuntu LiveCD/LiveUSB Default Login Credentials

I've just downloaded Ubuntu 12.04, created a USB startup drive, and booted. What is the default username and password for the live USB. Thanks.