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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3
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2answers
363 views

How to reorder folders? (as displayed in `ls -U`)

I've got a number of unordered folders on a memory stick, which my car stereo shows in order of their real position on the stick (i.e. same as ls -U) What's the easiest way of physically reordering ...
5
votes
3answers
3k views

Should I disable hyperthreading?

I will be maxing out a few boxes running some heavy CPU intensive processing. Each process only uses 1 thread, so I will run them in parallel. I'm using machines with 4 cores, so that's 8 with ...
1
vote
1answer
822 views

How to make system-wide shortcut to insert umlauts in Gnome?

I have a US layout keyboard and frequently need to insert German Umlaut characters. While on Windows, I used to have an AutoIt script that would e.g. insert ö to the currently selected input control ...
3
votes
1answer
11k views

Understanding X Windows DISPLAY environment variable when tunnelling

I want to ssh to remote servers, both running CentOS with X11Forwarding enabled. However the X application cannot run properly on one of them - on host B it works fine. But on host A I get the error ...
1
vote
1answer
719 views

What basic linux command-line utility can I use to test a JDBC connection?

I'm troubleshooting an issue with importing data to Apache Solr from a MS SQL Server database via a JDBC connection. Solr is hosted on a CentOS linux machine, and SQL Server is (of course) on a ...
0
votes
2answers
700 views

Fullscreen Browser [closed]

I'm looking for a fullscreen browser for linux. It doesn't have to have any controls. It suffices if I can control the page on startup by passing a commandline argument. If possible, I'd like to ...
2
votes
2answers
2k views

Hostname resolution of Linux machines from any OS

This is all on a LAN: I have a bunch of Linux machines (I'm calling these endpoints) which receive their IPs from a DHCP server that I don't control. I don't control our internal DNS However, I do ...
2
votes
1answer
307 views

Synchornize linux clock without internet

How can I keep a clock from a linux machine updated if this linux machine have no internet access? The machine is in a network and others machine have internet access, but this particular one can't ...
2
votes
1answer
387 views

Have the at command return the job id of the task just submitted

Is it possible to have the at command return somehow the job id it just submitted when used from within a script? (kind of like $? retrieves the last exit code or $$/$! retrieve the PID of the command ...
3
votes
1answer
93 views

How can at execute a command from the command line

How can I schedule a command using at without having to include the command in a distict file, neither from the mini at shell that reads from standard input? That is I want to execute the command ...
6
votes
7answers
1k views

Automatic versioning upon file change (modify/create/delete)

I am looking for an implementation (on Linux) of a mechanism which would automatically and transparently version any changes in a directory (recursively). This is intended to be an addition (possibly ...
0
votes
3answers
485 views

How do I change the default prompt from “#” to “>”?

How can I change the default prompt in Linux (red-hat 5.4) from "#" to ">"? example [root@moon11 root]# to [root@moon11 root]>
0
votes
1answer
146 views

Move jboss install from one redhat box to another

I have an old jboss installation running on an old RHEL box that I would like to move to another upgraded RHEL, joss version is 3.2.3. Would it be sufficient to move the jboss directory or does it ...
2
votes
1answer
239 views

Unable to change default OS

I have installed Ubuntu 11.10, Linux Mint and Windows 7 in my system. I tried to set Windows 7 as my default OS but Linux Mint remains as default. I tried to change the order through StartUpManager in ...
1
vote
1answer
1k views

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 ...
3
votes
1answer
646 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 ...
1
vote
3answers
3k views

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. ...
2
votes
1answer
1k views

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 ...
2
votes
2answers
550 views

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 ...
2
votes
1answer
429 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 ...
4
votes
1answer
823 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 ...
0
votes
1answer
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 ...
1
vote
1answer
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 ...
1
vote
1answer
355 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 ...
0
votes
2answers
2k views

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. ...
13
votes
1answer
1k views

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 ...
0
votes
2answers
993 views

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 ...
0
votes
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 ...
10
votes
3answers
6k views

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 ...
1
vote
1answer
1k views

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 ...
1
vote
2answers
285 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 `?
2
votes
11answers
1k views

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 ...
0
votes
1answer
570 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?
1
vote
1answer
76 views

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 ...
1
vote
3answers
87 views

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 ...
1
vote
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, ...
0
votes
3answers
2k views

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? ...
2
votes
1answer
143 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 ...
5
votes
1answer
4k views

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 ...
3
votes
3answers
3k views

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; ...
3
votes
3answers
5k views

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; ...
1
vote
1answer
341 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?
0
votes
2answers
197 views

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 ...
1
vote
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?
1
vote
1answer
291 views

Measure sound input loudness on Linux

Is there a way to measure sound input loudness, specifically from a mike, in dB, on Linux?
1
vote
4answers
4k views

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 ...
0
votes
1answer
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 ...
7
votes
1answer
3k views

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 ...
8
votes
1answer
5k views

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 ...
0
votes
0answers
647 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 ...