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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tuffy can't get custom kernel to work, broken things USB2 radeon raid reiserfs

This stupid thing will not let me post more then two lines, please see: https://bpaste.net/show/704ee6d37956 . I'm using funtoo.
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What should i do to make internet work properly on linux mint?

When i installed linux there were no broadcomm wireless drivers . so i opened driver manager and installed it from there after that internet worked fine but after an hour it stopped working , the ...
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Multiboot AD Binding Script Trouble (Error 10001)

So let's preface this with what I'm trying to do: I'm using DeployStudio to deploy multi-boot Macs, such as OSX10 and OSX09. My workflow goes like this upon Netbooting into the deployment server ...
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kworker is running modprobe every second

Using fatrace, I discovered that on my computer, modprobe runs approximately every second. To find out why, I replaced modprobe temporarily with this script: #!/bin/bash echo "$0" "$@" > ...
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3answers
25 views

Loop inside EOF - UNIX SCRIPTING

I am writing a script to automatic start up of an application whenever we found error in logs. so #/bin/bash if [ grep -c 'error' logs -eq 0 ] ;then exit else start <<EOF ## start is a ...
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OpenWRT - Install Apache - Barrier Breaker 14.07

I'm trying to find an Apache package for the Barrier Breaker 14.07, however there doesn't appear to be one in the package repository. Also I can't seem to find one online, I have been searching ...
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16 views

I add 500MB vdisk and it's showing 524MB, Why?

i add via vSphere 5.5 a new Hard Disk of 500MB to a virtual machine and the server sees it as 524MB. Any idea why? fdisk -l Disk /dev/sdg: 524 MB, 524288000 bytes 64 heads, 32 sectors/track, ...
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10 views

ipfw fwd in iptables or how to answer on non local adress

I have few servers working in scheme, for example, like this(sorry for my poor drawing): All servers have public IPs, I changed them for private in my examples. _______ |network| ...
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2answers
28 views

Backup to external drive with full disk encription and bit rot prevention

I have a new USB external 2TB HDD and would like to use it as a backup for my home server. My wishes are: full disk encryption (the disk will be stored off-site) bit rot prevention Currently, I ...
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4answers
25 views

Strange “find” behavior in linux

Why in Linux(Debian 8) touch 1.cpp 1.h find . -name "*.cpp" -o -name "*.h" -exec echo {} \; outputs only 1.h while find . -name "*.cpp" -o -name "*.h" outputs both? Is it a bug or feature?
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Audio Latency on Virtualbox Windows Guest on Linux Host

I am trying to run Cubase (music production system) inside a Virtualbox Windows Guest machine on a Linux Host. I have also installed the ASIO4All driver on the Windows Guest to reduce the latency. ...
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7 views

How to search only current directory in Nautilus (restore old behaviour)

Does anyone know, how can I bring the back the old nautilus behaviour? In old version (Debian <7), when I typed, the nautilus moved to first file that started with that typed phrase. In new ...
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24 views

How can we call batch file in linux? [on hold]

Actually I want to call bat file from unix box.How can I make it possible as we all know unix does not support bat file.
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8 views

how to keep the window's name fixed in tmux after I rename it with zsh

I use zsh with oh-my-zsh and tmux 1.8.1 I want the windows' name changed with the changing of my dir,but fixed after I first rename it. It is fine when I use shell, but the windows' name will still ...
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12 views

sz and rz fail to transform files in tmux?

I use xshell to SSH to a Linux remote server—running Red Hat Enterprise Linux AS release 4 (Nahant Update 3)—without root. There aren’t any problems to use sz, rz to transform my files until I start ...
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1answer
19 views

Partition directories into subdirectories based on directory name

Background: a client's website stores user profile photos and other attachments into a single flat folder /user/images/*user_id*. They recently hit the directory limit (echo */ | wc echoes 31998, file ...
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2answers
19 views

How to SSH to and connect back to original network?

Once I’ve connected to my Linux Machine(B) over the internet from my current PC(A), is there a way to run software on that machine(B) on the local one(A) so that it uses the original network. For ...
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1answer
14 views

FFMPEG merge consists of only one a single video instead of all of them

I am trying to merge several mp4 videos together in a folder. However, when I run the following script, sometimes only 1 video is in the output. For example, if I have video1, video2, video3, and ...
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10 views

systemctl do something between stop and start during restart or kill

I have a C++ program that runs as a non-daemon (but could be changed), and I'm controlling it with systemd. That works. Albeit with the ugly that to restart it I need to either be root (to use ...
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1answer
15 views

StandardOutput option of systemd is not working

I'm using systemd to start a program on boot and keep it running in the background. I wrote a simple script for systemd to call and the script will print several lines of logs which I'd like to see ...
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1answer
63 views

Why does rsync read .bashrc and not .profile?

rsync is a non-interactive program that logs into other machines. It shouldn't need the init file for an interactive shell session, and it should absolutely need the init file for a login shell. Or so ...
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How do I code a program to work with 3D models [on hold]

I want to code a program which displays 3D objects, and just as any Photoshop tool, I should be able to append, edit and remove any other pigments of that object from the final image. Please suggest ...
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1answer
23 views

using find and delete files/folder - with the exception of 1 folder - challenging

i want to use find and delete everything with the exception of one folder if found. e.g. [oracle@SJOAM test]$ ls -l total 4 -rw-r--r--. 1 oracle oinstall 0 Sep 2 02:05 a -rw-r--r--. 1 oracle ...
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15 views

Errors while building my broadcom drivers in Kali Linux

So I started doing whats given in this answer Kali Linux not detecting wireless network in dual boot but then at the "make" step I get this! root@kali:~/Desktop/holy# make KBUILD_NOPEDANTIC=1 make ...
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1answer
26 views

How to make a file writeable for its owner?

Linux newbie here, working on Debian Jessie. Why does chmod u+w not make a file writeable for its owner? I have run: sudo chmod u+w /var/log/myapp/gunicorn-error.log But now if I list the ...
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1answer
28 views

Finding which browser tab connects to a given IP address

How can I find out which browser tab/task/webpage (Chrome foremost, Firefox second) is or has connected to a given IP address ? For example, if I'm interested in one of SE's IP addresses, my system ...
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8 views

ERROR:sync_control_vsync_provider.cc(60)] glXGetSyncValuesOML should not return TRUE with a media stream counter of 0

I'm constantly seeing following message in my rsyslog: gnome-session: [24659:24659:0901/104445:ERROR:sync_control_vsync_provider.cc(60)] glXGetSyncValuesOML should not return TRUE with a media stream ...
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3 views

packer.io exit code of provisioning script

I got packer.io for building VM images. I provision VMs with shell script which uses puppet. Now sometimes there is situation where this provisioning script fails to provision VM correctly. I am ...
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27 views

Raspberry Pi not connecting to hidden SSID WIFI

I have a problem with edimax ew-7811un on my Raspberry Pi. I am trying to connect to a hidden SSID, let's call it "hiddenssid" with a WPA2 Personal password "hiddenpassword". I can see wifi dongle in ...
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2answers
33 views

Storing and retrieving a static IP address in a non-standard location in Debian

I need to store my static IP address in a non-standard location; say an EEPROM. This can be retrieved using a shell command. Is it possible to configure /etc/network/interfaces file in such a way ...
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VirtualBox SLES12 install GuestAdditions

I'm trying to install the guest additions in my sles12 guest system (host is win7). I followed the guide in the virtualbox-forum faq and the official tutorial on their website but this doesnt work. ...
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1answer
14 views

Tty and X session locking

Most GUIs lock the session after a period of idleness or after resuming from sleep, which means that the user is require to reauthenticate themselves to continue the session. Can this be mirrored in ...
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2answers
17 views

Jumping to previous prompt in terminal

In a terminal, are there any shortcuts to jump to a previous/next prompt? Scrolling up and trying to find the start of a log slows down my workflow. I'm using iTerm on OSX, but this should be ...
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1answer
27 views

What is the difference between a Display Manager and Desktop Environment?

I know that a Window Manager just manages windows, and can basically be used with any DE. My question is what is the difference between a display manager and a desktop environment? I ask this because ...
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34 views

ZFS not writing continuously to array

Preface: I'm by no means an expert Linux user, but I've played with Linux enough to be dangerous. I'm building a personal server, basically just to use as storage for video and photos. Current specs ...
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8 views

How to find configuration that wil emulate specific network conditions with netem / tc?

We had our otherwise well tested application fail once it was deployed on a device connected via a poor wan connection. To be able to debug this we want to reproduce the bad network conditions in a ...
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3answers
32 views

How to list only files of a certain type in terminal?

How I can list all files of a certain type in a directory? For example, if I want to see all MP3 files in the current folder, what do I do?
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1answer
24 views

Grep matching lines but return matching key IDs in GnuPG output

Having this input: rsa2048/C7927B82 2015-08-30 rsa2048/FB2D99F9 2015-08-30 I want grep to only return the key ID, for example: C7927B92. Using the pattern from Grep characters before and after ...
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1answer
7 views

How can I get Git to ignore/drop files I have deleted or that are only file-system artifacts (ending in ~)?

I would like my git repository to show only files that currently exist in the directory. In particular, I just pushed my git project to a remote repository on github.com, and now it's showing all ...
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11 views

how to xset dpms force off only one monitor?

I have multi headed setup using KDE display manager with proprietary nvidia drivers (no xinerama, single X server). Usually I keep only some server monitoring stuff on second monitor, eventually web ...
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1answer
30 views

Shred File without overwriting blocks

AFAIK, a file on a file system has two components. The pointer that stores the directory path of the file. Also stores the list of sectors/blocks on the disk that the file is composed of. The real ...
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1answer
39 views

Linux: Presenting a larger-than-real file system?

Does anybody know if it's possible to have a small Linux filesystem with apparently limitless (or very big) free space? We have a Samba server with lots of filesystems, all available from a small ...
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4answers
404 views

Scaling and rotation of image without depending on EXIF data?

Is there such a thing as a simple image editor for Linux which allowed for scaling and rotating the image without using EXIF data for the scaling and rotation? So far have I tried EOG, Shotwell, and ...
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0answers
21 views

deleted linux mint from windows 8 dual boot reinstalled linux can't make it work

I have a lenovo g710 laptop with windows 8.1 preinstalled.I made a dual boot with linux mint and everything was ok.Then i did something in linux terminal and when i restarted the pc linux wouldn't ...
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17 views

Unable to run yum command

I'm unable to run yum command on my Linux machine. I'm getting the following errors: dispsim:~$ yum Failed to set locale, defaulting to C Loading "rhnplugin" plugin Loading "security" plugin error: ...
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1answer
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tuleap and agiledashboard plugin

after I've installed and enabled agiledashboard plugin, I'm not able to access web home of Tuleap anymore. I found the following kind of error in httpd log: [Mon Aug 31 10:48:10 2015] [error] ...
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1answer
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Linux kernel working only on kernel mode

Porting the Linux kernel to an architecture that has no execution modes (is always in kernel mode) and has no MMUs seems like a very unprotected system. Would it be possible to make Linux run in that ...
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7 views

proc/meminfo :MemTotal vs MemFree

There is an excellent summary of the various stats returned by proc/meminfo in this SU thread. However,it does not explain the MemAvailable statistic which I gather is relatively new. I am assuming ...
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1answer
10 views

How to boot into single-user mode (runlevel 1) without entering root password?

In Fedora 22 and Ubuntu 15.04, whenever I boot into "single-user"/"recovery" mode, I'm asked for the root password. This is a new behavior; I remember that it used to drop me straight into the root ...
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1answer
29 views

sed option to preserve file times during a find/replace?

I'm trying to modify some Autotool files because a project is not honoring my CFLAGS, CXXFLAGS and LDFLAGS. I located some areas where I could likely make the change with a grep for libtool: link. ...