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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How to shuffle large text files efficiently while piping it on Linux?

I have a text file that is couple GBs. I am trying to shuffle this text file in a pipe. For example these are some sample lines of what I am using but it is not efficient and in fact the pipe does ...
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How to install cached linux debug symbols?

I am doing work which requires downloading and installing debug symbols multiple times for a specific linux kernel i.e: linux-image-3.8.0-26-generic-dbgsym I'm on a fast university fiber network. ...
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Mavericks startup script

I am trying to write a small script to launch when user logs on. I have searched and got the script to work but unable to run at log on with .plist We have active directory setup. When the user logs ...
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Does opening a Windows file in Linux update the file's access time?

I've got two hard drives in my computer, one with Windows and one with Linux (Vista and Mint 16, respectively). If I boot up Linux, I can then mount the other hard drive and access files on it. Each ...
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1answer
17 views

My disk at half size after formatting

I'm a long time linux user, I'm also a Windows user, after formatting my brand new USB dongle I get ~30Gb from the partition table available to create a new partition where the nominal capacity of the ...
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4 views

Issues configuring IPv6 on Red Hat 5.8

I'm new at linux and i'm trying to configure IPv6 on a Red Hat 5.8 due a specific application I'm working on. This Linux is installed in a VMWare 8 and the IPv4 is working fine! I can ping the host ...
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12 views

what are software repository and i386 directory and difference between them [duplicate]

I did lots of search and could get a satisfactory answer for what exactly is a i386 directory. I don't have that in my C drive. But my external harddrive had a folder(134f21d34234fh242f4) with weird ...
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1answer
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ssh authorized_keys permission denied only until file is listed/stat'ed - VERY STRANGE

Ubuntu 14.04LTS running openssh. I'm getting a Permission denied (public key) when I try to ssh in using my public key. /var/log/auth.log shows "Could not open authorized keys ...
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Extra keyboard for hotkeys - Linux

I found how to have different layouts on 2 different connected keyboards here, but I want to re-map the keys on a second keyboard for web development. Preferably, I'd have keys that would type out ...
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11 views

Is it possible to recover ext4 journal state before inode corruption?

First of all I'll describe my situation: I decided to make some partitions cleanup, resize, etc (not creating damn backup). Then I wanted to shrink filesystems, so I closed computer and booted some ...
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1answer
15 views

Run PHP at specific time - oneliner

I'm trying to run some code that sends an SMS at a specific time in the future. All on one line... Here's my command line command: php -r ...
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8 views

install Java SE SDK 5 on Chromebook

So I turned on the developer mode, installed Crouton on my Samsung Chromebook and used it as a linux ever since and it's been great. Now I need to install Java SE SDK 5(maybe 4 also) to perform some ...
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how to create ubuntu installable iso image from files

this might be a quite silly question but I lack linux knowlege so here it is... I have an ubuntu VPS from which I need to create a development environment under my WMWare. So I wonder if the ...
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8 views

Keeping two synched sets of mailboxes

I have a desktop at work, a desktop at home, and a laptop (all linux). My laptop usually stays in my office, because even though it's light, I don't care to carry useless weight: I have remote ssh ...
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9 views

Zorin no Kernel. Hard Drive is completely wiped after installing

I installed Zorin successfully, but I wiped eveyrthing that was previously on my hard drive. So when I boot up I'm in grub. I typed "grub> boot". But its saying I need to load a kernel. I have no idea ...
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7 views

Install measuremet lab's command line client on ubuntu(Linux) for speed test

Is there any script or simple way to install ndt on Ubuntu. Installation process on site says that we have to patch w100 file to kernel and much more which is too complex so I am in search of simple ...
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12 views

How to execute a long shell command with parameters in Python? [on hold]

This is a shell command that makes an xml from a pcap file: tshark -r something.pcap -T pdml > someting.xml I want to write a python script that does this automatically with all the pcap files ...
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14 views

How to install top & htop on Ubuntu 8.04.2 LTS (hardy)

Env. Rackspace Ubuntu 8.04.2 LTS (hardy) I am in a corner situation where I need to maintain carefully a legacy server before I can plant for an upgrade. Actually an upgrade is not an option, I ...
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Making proxies on Debian

Hi guys I am trying to create SOCKS Proxies on my VPS and currently am not getting too far so any help is well appreciated. Here's a few details on my VPS: It is running Debian linux, has 512mb ram ...
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5 views

Red Hat-Like Startup for Debian (ok symbol)?

One thing I kind of liked about the old Red Hat startup (I was using version 9) is the way it shows every process during startup with an [OK] symbol on the right (or [Failed] if it did not work), ...
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1answer
14 views

watching output of “ps aux | grep blah” in tmux will not work?

I am trying to run this - watch "ps aux | grep myShittyProcess" in a tmux session. This process myShittyProcess was also started in a tmux session. The ps aux works without watch command. But as ...
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13 views

Loading Nvram with U-Boot via the serial port

Cable modem, the nvram memory seems to be corrupted. U-Boot 1.2.0 bootloader is working, I can connect to modem via serial interface, view boot process and upload firmware. Network connection is not ...
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10 views

PostScript - Infinite paper size

I've been making a program for a project of mine that creates a PostScript file whose output then I have to analyze. The problem is indeed in the output, since the graphics consist of some hundred ...
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2answers
26 views

How do binary files run on different machines?

I always wondered about how executable binary files actually work. Compilation is always stated as taking the source code and translating it to machine language But what does that really mean? ...
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1answer
25 views

Make files which starts with a dote visible for every user

I'm trying to delete an uploaded Dropbox directory, but only receive "550 Access Denied" and i don't know why. I already tried to set the directory permissions to 777 but nothing changed. On the ...
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4 views

Missing xterm-256color and screen256-color entries in terminfo

The results are confusing when searching for xterm-256-color and screen-256-color in terminfo. Looking for xterm-256color, i get xterm+256color. What's the difference between the two, one with "-" ...
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2answers
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sub folders access to multiple groups

I Have a shared directory Department, it has 3 sub directories department wise Account, Sales, Presales and each sub directory have there department employees directory in the same like acc1, acc2, ...
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1answer
22 views

Failed to Start DHCP in Linux Redhat, Need Help ASAP

I tried to configure /etc/dhcp/dhcpd.conf file in Linux but it failed as static addressing. How do I fix it? Am I missing any data and is it accurate? I need help. Below is screenshot of my contents ...
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1answer
11 views

Finding a file based on who owns it and size (Linux)

Im looking for a file on a server. I know what user owns it, I know what group owns it, and I know its 33 bytes long. Im not sure where on the server it is. What is the best command I can use in ...
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3 views

passsenger: Apache 2 Test Page shown instead of rails application

I have installed centos and rails using a tutorial The problem is, the browser shows "Apache 2 Test Page" instead of the rails site. Any idea how to troubleshoot this.
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xargs + pv = messed up terminal

if i want a little progress indicator on my long-running operation i can use pipeviewer: ssh pc2 cat some.file | pv -nC reading | gzip --fast | pv zipping > some.file.gz this gives me a fun ...
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2answers
24 views

Can I Soft-Link files from my desktop to a server in Linux

I am looking for creative ways to sync my vim files (~/.vimrc, ~/.vim/) on the server I am running. Can I soft-link files from my desktop machine (Fedora) to any of the nix servers I am on?
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1answer
16 views

Default save location for different OS

I am making a web application that needs to save files on the client machine. The problem is that the client can be using different types of machines/OSes. I need to hard code (I think) a pathway to a ...
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1answer
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LightDM accepts password once, and never again

I'm running Ubuntu 14.04. Fresh install, although I'm pretty sure I'm going to need to reinstall after this problem is resolved. When I first start Ubuntu, I get the LightDM login screen. That ...
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Opening serial port with 'cu' command not running from rc.local

I am trying to run this command from rc.local: sudo cu -s 19200 -l /dev/ttyUSB0 > /home/pi/bticino/assets/bash/serialContent.json It doesn't work at all, there is nothing related when I run ps ...
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How to check if my ISP let GRE traffic through

is there any way to check if my ISP is letting GRE traffic through? I have some issuses with PPTP VPN server. From the server side everything seems to be ok. But whenever I try to connect from my PC ...
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6 views

Where to add a new sudoer in vCenter?

Currently, in vCenter, I clone new VMs using an Ubuntu 14.04 template and a SimpleLinux customization spec. I now need to add a new user (newuser) and configure it to be a sudoer in /etc/sudoers like ...
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2answers
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Finding a file of specific length in directory (linux)

I have twenty directories and im looking for a file with a known length somewhere in one of the directories. Is there a Linux command to search a directory for a file by size? What is the best ...
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10 views

Btsync: only three of five shares synced

I try to sync 5 shares from a Win7 computer to a linux box. The Linux box is configured by the following config. I experimented quite a bit with the settings but I only can get 3 of five shares ...
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8 views

keymap swap underscore and dash

I have noticed that when coding I type underscores much more often then dashes. Is it possible to swap these keycodes so I can type shiftless underscores? I am using linux (chromebook developer mode). ...
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1answer
13 views

Vim marks and US international keyboard

I use a US-international keyboard so that pressing 'a produces "á" while on insert mode. However, I would like to access a mark named a by pressing 'a under normal mode. That doesn't work and as a ...
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1answer
18 views

Complete yum history

When I run yum history I get a list of the last 20 yum operations. If I didn't clean my history, is there a way to get a full list? Does yum only keep track of the last 20 operations? Is there a ...
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1answer
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Transferring Linux OS from one drive to another with different partitions

First of all, some related questions: How to move from one drive to another that's a different size? What utility can move my Windows boot partition over to another hard drive? My situation is as ...
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1answer
10 views

Qemu user mode networking doesn't work

I try to use network in guest system. I installed an OS in a virtual machine, but I did not get the network configured. When I try to ping, for instance google.com I get the IP address for the domain, ...
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1answer
15 views

Linux base device not getting shutdown

I try to shutdown my embedded system running with Linux environment using shutdown -h now. But in place of shutdown it is rebooting my system again. So can anyone give me suggestion how to shutdown my ...
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21 views

How to give mathmatical command to linux terminal [on hold]

I am doing cprogram in linux terminal.I don't know how to give mathimatical command to it like squar root.
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1answer
37 views

Why there is an empty line begin with “*” in the result of history command on linux?

Today at work, I wanna know a history command which I am not very familiar with and I was sure that I just executed a little while ago. However, when I ran history on the same terminal window, I found ...
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2answers
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what command is used instead of #define in linux terminal

I am doing a program in linux terminal . I had a problem while doing a program.When I am giving command #define it not giving out put.So what is the command is used instead of #define.
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How can I apply a konsole colorscheme from a non default location

I need to change konsole colorscheme from a profile stored in a non-default location using the command line. The reason is that users will have their shell colour set based on the project they are ...
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14 views

Detect vga signals from command line

Currently I am working on Ubuntu 12.10. I am using vga2usb device for interacting with other vga devices such as monitors. Is there any command line utility or any specific command from which I can ...