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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sudo cp with wildcard syntax doesn't do anything in Linux

I have a directory containing files that are owned by root, from this directory I wish to copy all the files ending with errorAll to another directory. My wildcard syntax is correct because performing ...
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How to mount only a part (byte- or block-based) of a device file?

How can I create a block device file of an existing block device file of size z (including a file associated with a loopback) so that a certain byte x (with x > 0) appears as first byte, x+1 as ...
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Keep screen running after starting it with an alias and running some commands

I have a bash alias to move into a project folder, start screen, and pull new changes from git. it looks like this: alias start_manager2='cd ~/programming/manager2/ && screen -t "main" ...
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Start user systemd service once logged in and network up

I have a Gentoo system running KDE as a desktop. This is installed on SSD and using systemd and so it generally happens that the system boots and I login quicker than DHCP can do its thing and get an ...
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Disabling Mod SuExec

hello i have installed kloxo latest on centos 5.10 in one of my sites i want to use cgi scripts i give permission (0755) to cgi scripts ... and edited httpd.conf commented this line : ...
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Why has my Debian testing VM suddenly stopped loading X Windows System?

I recently installed Debian testing (jessie as of writing) into a VirtualBox VM. After installing, I loaded make, gcc, and dkms so I could install the Guest Additions. After installing Guest Additions ...
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OpenWrt Script (Inifinite Loop) Stops sending data over Serial Port

I have a TP Link Router TL-MR3020 flashed with the latest Attitude Adjustment. It is connected to an Arduino Uno via the usb port (usb cable into the arduino's type b connector). I have the following ...
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1answer
12 views

How to view mail through a client?

I just finished installing the postfix mail server and I was wondering how I can view my mail through a client rather than through command line? What clients exist for this and which are considered ...
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7 views

Gnome 3.14 system menu new button

Just installed Gnome 3.14 on Arch. What's the function of this new button on system menu?
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Backup Hard Drive (Data Only) To A Single Non Proprietary File (ISO, IMG)

I am looking for a way to clone/image a hard drive or removable USB to a single file, without preserving empty space. For example: I have a 1TB drive with 100GB of data that I want to back up. The ...
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1answer
61 views

What is the right place to buy an SSL certificate? [on hold]

I'm hosting my domain on name.com, but my server is hosted with a different company. Both the domain registrar and the web hosting company offer SSL certificates, but which one should I buy it from? ...
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How to compile Linux Kernel 3.x? [on hold]

Can anyone explain how to compile Linux Kernel 3.x? I've only compiled Linux Kernels 2.x and the usual procedure was: make menuconfig make dep make bzImage make modules make modules_install make ...
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1answer
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How to use linux bash “sort” command in a portable script?

I am writing a bash script and I want to make it portable, to have the same results in the other computers. From this question I learned the system settings, like language settings and possibly other ...
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1answer
11 views

Restore a file overwritten with ln -nfs?

I accidentially "deleted" a file by doing this: ln -nfs /path/to/file In my understanding the data itsself should still be there. I also stopped working on the machine as I did this shit... Is it ...
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Apache2 crashes on my RPI with no visible errors

I'm running Raspbian, a Raspberry Pi wheezy port optimised for it. I'm currently runinng WordPress on it, though it was doing it before(I think). When it crashes the rPi displays no onscreen errors on ...
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1answer
19 views

Unexpected result from sort command of linux bash

I have a file foo.txt with this content: chr1 15 chr11 5 chr11 8 chr1 7 chr2 23 chr1 35 I tried to sort it first according to the first column, and then according to the second ...
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16 views

Reinstalling linux without Re-Encrypting

I kinda crashed my system today by apt-get removing sensitive libraries with dependencies (for example pre-installed gnome-core and iceweasel were removed too)... I could successfully restore most of ...
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1answer
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No output / stdout / feedback in mysql prompt on Ubuntu 14.04

I'm running Ubuntu 14.04 and Nginx, and I recently installed mysql-server while following Digital Ocean's LEMP stack setup guide (I intend to run a WordPress site with it). When I try to log into an ...
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1answer
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find all IDs and CLASSes used in an HTML document in BASH

I have a block of HTML that I need to pull all the IDs and CLASSes out of. Im wanting to make a list of these so that I can start trimming our larger then necessary CSS doc (173k). Ill isolate the ...
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3 views

SSH tunnel data from hostapd server to remote server

I've set up a small raspberry pi with hostapd to be a wireless access point. I'd like to have all connections from it ssh tunneled to a server in another country. I'm not overly sure how I'd do this, ...
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Linux how to move space from one partition to another

I am not familiar with Linux OS configuration. I need you help to move more space from one partition to another. I have this disk usage right now: $ df -h Filesystem Size Used Avail ...
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Linux wireless driver issue

I have HP pavilion 15 p050-su. My wireless card is Broadcom bcm43142. I can make the card runnig but the problem is that I have extremly low range(even when I'm infront of the router(less than 1 meter ...
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1answer
21 views

RPM command stuck/FREEZE when installing RPM file

I want to install the following rpm from some reason RPM is stuck or freeze and not install the RPM package also I cant stop it by control C , please advice what could be the problem ? root]# rpm ...
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1answer
13 views

Merge a squashFS and a initrd into one single file (PXE booting)

I have a initrd and a cloop (squashFS). Which is the simplest way, to merge those 2 files into one single initrd file, for the purpose of PXE-booting the whole image at once without any bootstrapping ...
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Debian Active Directory to LDAP migration

These days I am working on LDAP and Active Directory migration. I want to migrate to LDAP but I cannot get passwords from Active Directory. I want to seemlesly migrate to LDAP, and I want a solution ...
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How to multicast live H264 without transcoding?

I have a live H264 stream (hardware encoded from the webcam) and I'd like to stream it over the network using multicast on a Linux platform. Because the platform has limited CPU power, and the data ...
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Install root certificate authority on Ubuntu

First off I am not sure whether I have the correct terminology. What I mean by certificate authority is a verified certificate distributor such that if I goto a website in my Browser that is HTTPS ...
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Periodic backup of changes on another disk from full backup

I am looking for a backup solution that will enable me to backup only changes to an internal disk after a full backup to an external disk. Also, this should run snapshot backups every day until the ...
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DNS Servers Between Two OS

Trying to sync DNS Servers between a Linux server and a Windwos server. Anyone have an idea how to sync an UBUNTU DNS Server with a Windows 2012 R2 DNS Server?
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1answer
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In bash, declare an alias that depends on current variable content

I would like to declare an alias in my .bash_profile that will use the content of a variable when the alias is used and not when it is declared. Ex: alias goSomeWhere="cd $BASE/somewhere" When ...
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13 views

monitoring download/upload traffic of every process running on a remote system

I'm looking for a linux tool for monitoring upload/download of each process of a remote system. I've found some like nethogs, but they don't do this remotely. As I don't trust the guest system I want ...
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1answer
16 views

How to get status code of program piped to linux dialog command

I am trying to use Linux dialog to prepare simple installer for Ubuntu. The actual command is: dpkg -i package.deb 2>&1 | dialog --programbox "Installing..." 10 100 I want dialog to ...
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Delete All files except specific file in bash

I am trying to use rm -rf !(current) delete all folders in current path except current folder. But I am getting below error bash: !: event not found How do I get this functionality in bash?
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Is secured GRUB unable to load drives?

Basically I'm trying to get GRUB's secure boot capabilities (no connection to UEFI) up and running. I've got a fresh install of Ubuntu 14.04 running in VMware Player 6 and after generating a signing ...
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Equivalent of /etc/chromium/default for google-chrome on Linux

I have a flag I need to add to every invocation of Google Chrome (--password-store=basic, because of this bug). With Chromium I could do this with /etc/chromium/default or by setting ...
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1answer
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Disable write permission for the user, Ubuntu

I'll be brief. I need to disable a single user to read and write files on the whole server with Ubuntu, except one file. That is, he can write to the file output.txt, but other directories are closed ...
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How can i find oRTP library for Libexosip 2.2.3

when i doing ./configure, Libexosip prompt a line : configure: error: oRTP library not installed. Please install or use --disable-josua ==>> so i cant find this package. I'm doing a project about ...
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1answer
16 views

How can I edit the bootup screen in a fedora ISO?

I want to modify a fedora ISO image so that when I install it, it will use a custom image for the bootup screen and desktop. Is this possible?
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How to install pktstat on centos7?

I am trying to install a package called netstat but I can't, I tried downloading and installing rpm file, but it was no use I tried making repos but I don't know if I am doing it the right way. Any ...
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2answers
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How can I print everything before a match?

After I run hostname I get the FQDN like so: $ hostname foo.mydomain.xyz I'd like to only get the short name foo so I can store it as a variable in a script. I've tried some ways with awk by ...
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My teamviewer does not show ID in Ubuntu?

I installed teamviewer from terminal by following this guideline ; link But if I run teamviewer --info (with sudo or not) it shows TeamViewer 9.0.32150 teamviewerd status ...
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modify shell command in Ubuntu 14.04

I had installed Ubuntu 14.04 on virtualbox, I need to be able to read source code of shell commands, and modify any command? any help please? where i can find the shell commands? in which directory?
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Installing and booting Linux Deepin on external Hard drive

I have a external hard drive with 1TB of memory on it. My question is if I can install Linux Deepin on this hard drive, and then plug it into my computer and boot from the hard drive, while still ...
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Localhost and local Ubuntu Server Apache2 server issues

I have an Apache2 server running on a Ubuntu Server PC at the moment and am having a few problems with it of which I hope one of you could help me with. I have the Apache2 on machine x.x.x.72 and ...
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How to change the main grub

I have two ubuntu installs, A and B. The "A" is my main install. In B, I have compiled and installed a custom kernel. Then I run sudo update-grub. The problem is that, running grub in "B", it does ...
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1answer
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Kill browser tabs with Bash from younger to older

Hello i want to kill tabs from a browser(ex. chromium) by order from youngest to oldest. I used pkill -f -n -9 chromium but i want to use it in a while iteration with comparison to pkill's return ...
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Cannot change vncserver default geometry

I'm using Ubuntu 12.04 (I think it's desktop...) and running vncserver to connect to it remotely. I can successfully set the resolution if I use the -geometry flag when starting the server, but I ...
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How can I use chef to configure a basic system

I am creating a server infrastructure just for fun and I want to use Chef as automation tool. I've already worked with Chef, cookbooks, ruby, git, ... but I used it only for small tasks like ...
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Ubuntu wrong clock time (universal and local)

Local time and universal time are wrong. They are shifted to -2 hours to the real time. Setting the timezone didn't solve because the universal time is wrong. I'm running ubuntu 14.04 and I have a ...
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WAFL - Write Anywhere File Layout

Hi I'm looking for some information on how WAFL works , more specifically I need help in understanding the following parts. To make your task of answering simpler I've outlined a few questions. ...