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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No WiFi in Linux Mint Xfce

I just installed Linux Mint (Debian Edition) Xfce x64 on my laptop, in preparation of getting my new computer for Christmas. Anyways, I am trying to connect to wireless, but I can't seem to get it to ...
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649 views

Does Windows use an RTC wake up to switch from suspend to hibernate?

In Windows 7 power management, you can state that suspend should happen after x minutes, and hibernate should happen after y minutes. So if x=10 and y=180, then the machine must come out of suspend ...
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Connecting to FTP via Linux Command Line

I am new to all of this and I need to upload files via ftp from the command line. I have this information: a url, a username, a password, a port, and the fact that I am supposed to use passive mode. ...
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Freeze on boot, lightDM will not start

Having recently installed ubuntu 11.10 on a new computer after approximately a week of use I experienced a freeze on start-up. I think some updates where installed on previous session but I can't ...
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What is wrong with my fast-network's slow-network-share(s)?

I have done extreme amounts of testing. cp, dd, rysnc, iperf, netcat, custom-dd and probably more. What I am looking at is a strong network. The iperf results below show that, and I have other data ...
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1answer
430 views

ffmpeg or mencoder - Convert a video using another one as a reference format-wise

I have two videos from different sources. I want to convert one of them so that its format, codec, framerate are the same as the other one. Is there a one-liner for it (where I can give the ...
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1answer
831 views

Windows manager which allows multiple active windows/multiple input devices?

I have a huge desktop, with multiple monitors, and one pretty good computer. I also have multiple mice and keyboards laying around. Now I would really like to make use of all the hardware. Say a ...
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126 views

Create a user account under the root in linux [closed]

I want to create a user in Linux and add two user. But i want that Both user cannot access tha data with each other. In case if OS corrupt then tha data will stored in another location for future ...
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2k views

Install java on Linux through shell without apt-get

I'd like to run multicraft on one of my servers. After some intensive debugging/installing I realised the server didn't yet have a Java Runtime Environment. I figured it would be easy to install, but ...
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1answer
358 views

Create movies from images and sound files scripting transitions using Linux console?

I need a Linux command-line program that can: Accept some kind of scripting language capable of transitions (fade, scale...) Generate movie files like AVI, MKV etc from images like JPG, PNG, and ...
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IPtables: Blocking all traffic on an interface except select ports

I have four interfaces on my system (eth0, eth1, eth2, and eth3). I want to block all incoming and outgoing traffic on eth2 except for port 80 and 443, although I'm only worrying about 80 right now. ...
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How to reuse/extend etckeeper's metadata engine for git control of non-/etc filesystems, or extend git natively with said capability?

Overview + question I want etckeeper-like filesystem metadata control for non-/etc, git-controlled directories. Home and web-app directories, among others, are classically sensitive to metadata ...
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Can't boot in to arch linux - '/sbin/init: Bad Exec Format' followed by kernel panic

I dual boot Windows 7 & Arch Linux. Arch was stable for a while, but then it stopped booting into Arch, saying '/sbin/init: bad exec format'. This is followed by a kernel panic. I'm not really ...
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1answer
1k views

Cannot install build-essentials/GCC on Kubuntu 11.10?

I recently installed kubuntu 11.10 but to my surprise there is no gcc installed on it.Because of this I cannot install virtual box guest additions(they require the make utility) and I am not able to ...
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Is it possible to alias a username on Linux?

I'm not sure if this has a practical application at all (aside from the fact that I am lazy. you know "christopher" has 11 characters, and I want to type 1), but is it possible to alias a username on ...
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1answer
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Create site-to-site VPN from linux to Cisco - possible?

I have a question that I have not found a definitive answer on, but am hoping someone here can chime in and either point me in the right direction or crush my hopes and dreams. I have a Cisco ASA ...
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2answers
286 views

How to map key ~ to `?

I'm using Linux Mint, I set a hot key that ` will open a new terminal window. But now I found that when writing markdown, I need this key. How could I map ~ to `?
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How can I block execution of rm -rf * in a Linux shell?

I have a habit of typing rm -rf * every time I'm in some kind of sleep mode. It seems that my subconscious wants me to delete everything I code at the end of the day. Is there a way to block this ...
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1answer
575 views

How do I upgrade Linux Mint 8 to Linux Mint 12?

I have Linux Mint 8 on my home laptop. It dual boots Windows Vista. It's time for an upgrade. Linux Mint 12 is out and I'd like to replace 8 with it. How do I go about doing this?
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Delete files on OpenVMS 7.2 from live environment?

I am responsible for getting a machine working that is running OpenVMS 7.2-1, but currently it's hard drive is full such that errors are caused during boot when various services try to create log ...
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3answers
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How do you distinguish a directory, and it's contents in linux?

Let's say you have this directory tree parent -----child1 -----file0 -----grandchild1 -----file1 -----file2 ...
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2answers
4k views

tmux keyboard shortcuts not working properly

I've started using tmux of recent, and changed the bindings so that it would respond to C-a instead of C-b. These are the lines in the .tmux.conf file to do this: unbind C-b set -g prefix C-a But, ...
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What is the difference between Filesystem(device location) and Mounted point? both seems to be directory

What is the difference between Filesystem(device location) and Mounted point? Both seems to be directory. Where does actual data/files of the mounted device reside? in filesystem or mount point? ...
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1answer
144 views

Linux-based instant replay solution?

I've been tasked with building a Linux-based instant replay machine for my University's athletics department. Output from this machine will potentially be broadcast, not just viewed by ...
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1answer
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Change location of root's home directory

I would like to change the location of root's home directory from /root to /var/root. I used to be able to do this with usermod: usermod -d /var/root root However, with the latest version of ...
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Linux - how to format multiple file systems within one file?

I need to create a disk image with two empty file systems. I have created it using dd if=/dev/zero of=./disk.img bs=1MiB count=1024 Next, I have created 2 primary partitions using fdisk disk.img; ...
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PDF - removing usage restrictions

I have several PDF documents which have the "no copy" and "no print" restriction bits set. Are there any free tools for removing such restrictions, on Linux? (Please do not suggest pdf2ps | ps2pdf; ...
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343 views

Where is the DNSv6 server list stored in Linux?

In Linux, where is the DNSv6 server list stored? Like in the v4 case, will it be stored in /etc/resolv.conf?
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IPv6 LAN Clients IPV6 Address List

I am only using 'radvd'[Stateles Addres Configuration] server to advertise the prefix for LAN clients. LAN clients are formaing global ipv6 address based on advertised prefix. I need to display the ...
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1answer
73 views

What's the typical directory usage for a home server?

I am setting up a Linux home server with FTP/Web/NFS/SSH/GIT services. It will be used as a backup server. What's the typical usage of directories to keep my system organized?
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293 views

Measure sound input loudness on Linux

Is there a way to measure sound input loudness, specifically from a mike, in dB, on Linux?
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4answers
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Need to fix Windows MBR without using a CD

I have a laptop which was Linux/Windows 7 dual-boot. I need to get rid of the Linux partition so that it only boots into windows. I know how to do this if I have the Windows 7 CD(which I do). But ...
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149 views

Need to fix Windows MBR without using a CD [duplicate]

Possible Duplicate: Need to fix Windows MBR without using a CD I have a laptop which was Linux/Windows 7 dual-boot. I need to get rid of the Linux partition so that it only boots into ...
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Linux: CPU core shutdown instead of sleep state

In Linux you can shut down CPU cores (or physical CPU's) with echo 0 > /sys/devices/system/cpu/cpu1/online Assuming that the hardware fully turn off the CPU and cuts power to it would it not be better ...
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1answer
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Getting  and â characters in linux putty console?

I am very much annoyed by â and  output in manual outputs of most of the commands. Can someone please suggest me workaround? I am using putty in SSH mode and my linux server is customized by Amazon ...
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660 views

Building against an older glibc

Is it possible to build glibc/gcc/binutils in the version combo of say 2.4/4.6/2.22 (or some later version of GCC used by the oldest/'stablest' linux distro's still around)? I would like to create ...
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1answer
209 views

how to convert a script using pipelines to named pipes

I have a bash script that is using anonymous pipes to achieve: grabbing video from dv capture device writing to a file (using tee) piping it to ffmpeg2theora (converting to ogv/theora video) writing ...
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2answers
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lost files, not freed on disk

I had a NAS with 300GB data stored on it. I played around with it and finally broke it - all of the data was lost. I opened the NAS and put the disk into my computer (running Ubuntu). I put new data ...
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1answer
2k views

What does .cache do? It consumes a huge disk space

What does it do? Is it ok to delete all of its content? It consumes 14GB of my hard disk already.
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555 views

How to check what process is writing to hard drive in shell

Currently the free space of my hard disk is shrinking for unknown reason. The free space keeps reducing until no space lefts. I don't know what's the cause, so I want to inspect to see what process is ...
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563 views

Ubuntu 10.10: The Update Manager Will Not Authenticate

I'm running Ubuntu 10.10. The update manager came up the other day. However, when I hit the "Authenticate" button, nothing happens --- I've let it sit for about 5 min?
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277 views

Is it possible to safely get data off a hard drive thats a member of a mdadm-mounted RAID1 array via USB?

I have a RAID1 array of two drives created with mdadm. Is it possible to remove one of the drives, hook it up to a USB SATA adapter, and safely mount it, get the info off of it, and return the drive? ...
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Device detected before udev loaded on boot

I have an FTDI USB serial device plugged into a USB port on boot. I have set up a udev rule to create a fixed name for the port that it exposes. My problem is that on boot up the device sometimes ...
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275 views

Linux : Rotating log buffer with output redirection

I have an application that prints errors on stderr. I can redirect that output to a file with app 2> log.txt (Un)fortunately I log tons of information. I'd like log.txt to not grow too much, or ...
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282 views

Rsync from Linux to Windows producing problems with back slash

I know if I was having an issue with rsync with characters I'd use --iconv= - but this issue is some file names have black slashes in them, and I don't have the ability to rename the original files. ...
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1answer
146 views

VirtualBox: Linux guest on OS X host won't update

I'm running a Debian Mint guest on an OS X host with VirtualBox. 1) So I run Update Manager in the Linux guest: 364 recommended updates are available. 2) Everything seems to be going fine. 3) ...
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277 views

A linux PDF reader that supports unicode characters

I use the default document viewer in Fedora. But for some languages such as Persian I can't copy texts. When I copy them and paste them somewhere, I get some irrelevant characters like f! O I K Q- ! ...
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How do I disconnect the power from a USB host port from the shell?

How can I from the shell remove and apply USB power to one of the host USB ports in my machine?
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376 views

Ubuntu & Fedora sharing with Samba

How can I share files between a desktop PC( with Ubuntu) and a notebook(with Fedora) in the same network using samba? I tried to configure samba to both of them, but nothing? On Fedora I configured ...
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Clearing Terminal in Ubuntu

The linux terminal has a handy command named "clear" that removes all previous output. Unfortunately, when I run this command and then compile a rather large project with gcc, all previous output ...