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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Can't change any system settings via Chrome Remote Desktop on Xubuntu

I'm connecting to my remote server running Xubuntu. When I log in directly to the box, all is fine - the problem appears when I connect using Chrome Remote Desktop. If I try and do anything important ...
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Correct radeon driver on a notebook with two AMD GPUs

I'm using Gentoo on a notebook with two AMD GPUs: an integrated and a discrete card. Here's what lspci is returning: 00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] ...
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1answer
6 views

Copy matches of recursive search to a new location

I want to search a directory recursively and copy all XML files matching a grep condition to a new location. I can identify the files with: ls -R | grep .xml$ or with full paths with: find . ...
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2answers
87 views

Log in using SSH without password

On my server, I've got openssh-server and a special account without password. I'm creating a shell script, that must be used without user input. For example $(ssh dummyUser@dummy.com) I need script ...
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1answer
28 views

The installation dialog box does not show up after booting from my bootable USB which has Ubuntu in it

I used to create bootable USBs in the following way and it used to work perfectly fine: sudo mount -o loop /path to iso/ /media/iso cp -a /media/iso/. /path to usb flash drive/ sudo syslinux -s ...
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Any problems on Windows-Linux multi-boot in case of free upgrade from Windows 7 to Windows 10?

I use Windows 7 on a multiple-boot machine (beside Win7, I have different Linuxes, using Grub). I want to freely upgrade Windows 7 to Windows 10. Will the procedure have some impact on the ...
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1answer
10 views

Find and replace in output of command based on file contents

I have a tail -f command reading a log containing IPs however I wish to replace these IPs with hostnames, I have the dhcpd.leases file available to the machine on which this is running. I have been ...
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1answer
10 views

Upstart: What is the first tracked PID w/o expect, but with script AND exec?

I have some Upstart configs used to start some foreground and blocking processes to run in the background as some kind of "daemons", especially those processes do not fork in any case. What I want is ...
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2answers
2k views

How to get rEFInd working with FileVault 2 on OSX 10.8

I installed rEFInd on my new Macbook Air which I planned on using to do a dual boot to Linux, but prior to installing Linux, I decided to encrypt my drive. I knew I was going to do this, so I had ...
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5 views

Getting UEFI shell when trying to boot OS X in Virtual Box

I am using the latest test build of Virtual Box (normal versions don't work on El Capitan). When trying to boot a Virtual Machine with an El Capitan cdr file (created from the command line) I end up ...
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9 views

Keyboard layout in Terminal of Red Hat Linux changes automatically

I have an unique problem in Terminal of Red Hat Linux WS 6.6. After some of period of period (Don't know exactly when..) keyboard layout (and not language) changes from German to English ONLY in ...
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1answer
12 views

Can't boot kali linux under grub2 (usb flash)

I split usb flash to three part: | For DATA | For Kali Linux | Persistence | Then i'm install grub on /dev/sdb2: sudo grub-install --no-floppy --root-directory=/mnt/linux /dev/sdb Write ...
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2answers
121 views

How do I install the 32-bit runtime linker on 64-bit NixOS?

I need that to use mksdcard from the Android SDK. Currently, when I run that executable, the system reports "No such file or directory". For Debian derivatives, one can install ia32-libs: ...
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3answers
3k views

How to run Chrome apps via command line?

I'm new to linux and just installed Elementary OS. I installed Chrome and noticed that Workflowy and a bunch of other Chrome Apps are also installed, as you can see in the screenshot. But how do I ...
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1answer
26 views

mysql (mariadb) ERROR 1698 (28000): Access denied for user 'root'@'localhost'

I'm working on Xubuntu 15.04. I already installed the MariaDB-Server on various systems and was always asked for a root password during installation. This time, however, I don't remember being asked ...
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4answers
2k views

How long will mkfs -c take?

I'm currently running a sudo mkfs.msdos -c -F 32 /dev/sdg1 How long would it take, approximately? This is an USB 2.0 disk of 250GB. The lower limit is of course 2 * 250GB / 480 Mbit/s ~ 8400s (it ...
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Input/Output error while installing Ubuntu 14.04

Hi there I was trying to restore my Dell Inspiron 3543 to factory state after accidentally loosing my data using Dell's factory image that I backed up when I first bought the laptop. I am facing ...
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107 views

Opensuse 13.2 kernel upgrade to stable version (4.1)

I have opensuse 13.2, and i try to upgrade kernel to last stable version. I adding http://download.opensuse.org/repositories/Kernel:/stable/standard/ to repository and try to upgrade with sudo ...
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1answer
2k views

Recursive filesystem notifications (inotify) for Ubuntu Karmic Koala

I need a program which generates events when a file is moved, removed or its extended attributes are changed. I'm running Ubuntu Karmic Koala 32-bit desktop. inotify is the standard solution for such ...
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3 views

Missing /grub/stage1 file

My situation goes like this. I have a SW-RAID1 setup on the server. Unforunately, it is only able to boot from device sda, without it. The server will not be able to boot up using device sdb. So after ...
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1answer
21 views

Complete password- and key-less login for user using SSH

I want to use this plugin in my text editor to debug my HHVM application. Therefore I need a Linux user which is able to login via SSH both without password and without key authentication. How can I ...
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How to install Webcam driver for satellite P755D S5172 in Linux

Has any one configure the webcam under Fedora 22 or other linux version ? Please provide me with the steps Thanks
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How to install Webcam driver for satellite P755D S5172 in Windows 10

I have upgraded to Windows 10 - 64 Bits and my camera used to work in Windows 7 also 64 bits. I have tried using the official Windows 7 driver but no luck. Please advice me on How to install Webcam ...
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20 views

How can I setup multiple php version in Linux?

I am working on a project and I just want to ask on how can I setup multiple PHP version in Linux. The scenario looks something like this since the server already has a PHP but with a version of 5.2 ...
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Bad results converting PDF to EPS on Linux

I'm having some trouble converting PDFs (created by Adobe Illustrator on a Mac) to EPS. I have tried several things but I am wondering if there is a better option. The following list is ordered by ...
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7 views

ffmpeg concatenate dynamic chunks (on-the fly)

The ffmpeg docs for concat lists the following way ffmpeg -f concat -i mylist.txt -c copy output The mylist.txt file contains file like file '/path/to/file1' file '/path/to/file2' file ...
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1answer
3k views

ffmpeg fastest way to convert videos avi to mp4

I have server which has: 8x3,4 (sandy bridge cpu) 10gb ram i tried different combinations to convert vvideos i mean avi to mp4 but it takes so long: - ~20mins=~200mb maybe there is some ffmpeg ...
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1answer
65 views

Debian laptop loses all network access, can't ping anything

I've got a laptop running Debian (Jessie) that for whatever reason has decided it hates wireless. It has some kind of Intel wireless card (not sure which), and so uses the iwlwifi package for ...
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1answer
2k views

'user is not in the sudoers file' but actually is

I have already read a lot of posts about enabling sudo-access for a specific user but those couldn't help me so far. The situation is: I'm running Debian Testing. On the system there are only two ...
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5 views

Start a gnome-terminal at a certain position, certain size and font size

Before I start I have looked around and cannot find a solution to my problem. You may think this is similar to other questions but please read all the way through. So what I want to do is write a ...
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1answer
11 views

Command line for Application alias in Mac OS X

I’m working on an installer for a project and I’ve written a post-install script that runs the executable for my project after it’s done. I want to know the command line argument—or if there is a ...
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2answers
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Linux : let process run per CPU

My server has 4 CPUs, and I'm parsing a file using grep. It's very slow using just one process. Is it possible to let run four processes using these 4 CPUs? How to do it ? Thanks.
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Opening port in iptables doesn't work

I add the following line before COMMIT in /etc/sysconfig/iptables: -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT Then I use service iptables restart to restart iptables, but the ...
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4answers
770 views

Making hardware peripherals for Windows work with Linux too

I found this really nice external wireless keyboard and mouse combo for my laptop, and was about to buy it when I just noticed that the OSs supported include only the various versions of Windows. Can ...
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3answers
12k views

How can I do a recursive chmod only on directories?

I want to change permissions on a tree on Centos 4 to add execute permissions for all directories recursively from a directory. If I use normal chmod, files other than directories are also modified: ...
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1answer
26 views

After Upgrade: Pacman error 404

I've upgraded Arch Linux on my Raspberry, and now receiving following error every time I want to update my system with pacman -Syu: :: Synchronizing package databases... error: failed retrieving ...
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1answer
138 views

Totem Videos unable to play MOV (Failed to search for plugin)

I'm trying to play file.mov file with Sound & Video -> Videos (3.8.2) on my CentOS 7: $ file file.mov Create Meeting using IS Task room.mov: ISO Media, Apple QuickTime movie $ cat ...
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3answers
424 views

Watch a filesystem and rsync changes in a cross-platform way with minimal dependencies

I'd like to start a long-running Ruby or Python script, and have the script watch a local directory for changes to files and new files. Periodically, the script will trigger a one-way rsync to a ...
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1answer
12 views

Closing open file without killing the process

I have java(yeah java...) application running on CentOS 7. After a while, there are many "deleted" files that bother me. for deleted files used(not the issue): lsof | grep "(deleted)" I found them ...
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3answers
146 views

Linux: How could a directory be created without “.” and “..”?

I am not sure if the following issue is specific to busybox: I have an embedded device with busybox installed. From what I understand, when a directory is created, usually 2 hidden files will be ...
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2answers
4k views

apache wont follow symlinks | 403 permission denied

I'm using Ubuntu 14.04, and have a problem with the Apache configuration: I created a Symlink from /var/www/html torwards /home/me/myWebDirectory but localhost/myWebDirectory renders a ...
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1answer
19 views

Which shell script executes first at boot time?

Is there a standard entry point of the shell in Linux? For example I know that /etc/profile get executed at startup, but which is the script that gets executed first? If every distro does it ...
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3answers
732 views

How to persist `gnu screen` layout after restart

I am using the screen split in 3 with vim on the left, and two other screens split horizontally on the right. I know that when detaching from a screen, I can save the layout with :layout save ...
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1answer
10 views

Antergos Linux gnome3 powerbuttons disapeared

I installed Antergos Linux a few days ago (sdb5). I'm new to Linux so I just used most the defaults (changed Chrome to Firefox) and used sdb8 as /home and sdb9 as swap. I changed a few setting, ...
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4answers
6k views

Rsync print only files that would have been changed

Is there a way to get rsync to print the full filepaths to all files that are different without actually transferring any files? Alternatively, I need a way to diff the files across two trees (over ...
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1answer
9 views

How to compile phantomJs on a machine and then 'port' it on a other?

I've a Ubuntu 15.04 VPS with only 512MB of RAM. It's enough. No Problem. But I need to compile ("build") phantomJs, because there is no linux packages available. This require as much as 4GB of RAM, ...
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Error installing Safari for Windows on Ubuntu 15 through Wine

I'm trying to install Safari 5 for Windows in Ubuntu 15 through Wine (version 1.6.2). First I downloaded with wget: wget http://appldnld.apple.com/Safari5/041-5487.20120509.INU8B/SafariSetup.exe ...
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1answer
22 views

Virtual Machine or a Cloud Server without IP Address?

Is it possible to create a virtual machine or a cloud server on a dedicated server without IP address, for example with a hostname, or something else? The reason I'm asking this is because I want to ...
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15 views

Recover a Windows partition (under GRUB) and lost files

I am bringing this question and comments here, after feeling stackoverflow wasn't a place for me. I hope, at least, get some help here. Thank you very much indeed in advance. I really need a solution ...
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2answers
5k views

How to find out total NIC cards and total available physical ports in linux

I need to find out how many total physical ports my server has, and how many of them are in use and how many free. Can you kindly help how to find it: This is what i find from dmidecode output: ...