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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Windows 8.1 reboot upon reaching the logo

I have a HDD which was used just for Windows 8.1. That is, the HDD had two partitions, system reserved and Windows. Now I got a SSD and switched back to Linux as my main OS, but yet I have the HDD ...
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1answer
15 views

extend lvm with existing partition

I have the following partitions: root@test02 [~]# df -l Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/vg_test02-lv_root 119277820 ...
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What Exactly am I Seeing Here?

I have a Dell D620 that has its screen ripped out ( was damaged a while ago ) and so to see any console output, I have a VGA-Compatible TV hooked up to it. Sometimes when I haven't typed anything for ...
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Sending data to port does not seem to be working on Ubuntu Linux?

I am trying to send data to port 2003 I am using tcpflow to listen however i cannot see any data being printed or sent ? Sending Data to port 127.0.0.1 2003 echo hello | nc localhost 2003 or ...
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2answers
22 views

Lock VsFTP user to home dir

I have been working on this for about an hour and followed many examples but still the new user can get to the whole directory structure, or can't log in at all with message "500 OOPS: vsftpd: ...
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1answer
20 views

All the USB ports on one physical side don't work after suspend

I have a new problem with my Lenovo Edge E545 where, after suspending and resuming, 1 USB-2.0 port and 2 USB-3.0 ports fail to work. They are all the USB ports on the same physical side of the ...
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10 views

Running commands on bootup on unknown Linux-based machine only by placing files

I have a Zmodo DVR that runs some kind of Linux-based OS and which (I think) has an ARM processor. I can place files in its filesystem using its updater tool, replacing anything with the same name, ...
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25 views

Linux for a laptop, docking station, and 3 monitors

I'm looking for suggestions on a Linux setup that will work well for a Dell Precision M4800 that has nVidia graphics and spends a large chunk of it's time on one of Dell's port replicator / docking ...
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2answers
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How do I know if the hardware clock in linux is set to localtime or UTC?

I have a dual booted PC, and in order to have Windows and Linux agree on the time, I have set the hardware clock to localtime in linux as described here. Now I want to make a script to check if my ...
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1answer
38 views

Getting LAN clients to use IPv6 tunnel of Debian router

I have a Debian Jessie powered server which acts as router for our home network. I have succesfully managed to set up an IPv6 tunnel using TunnelBroker and traceroute commands return succesfully. ...
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38 views

allow sudo user to execute multiple commands for only ONE file

I'm trying to allow only one user to be able to use only 'cat,head,tail' on some of the log files. What is the exact syntax to use here. I tried user ALL /bin/cat /var/log/maillog Which works ...
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36 views

What is the lowest latency method for streaming a desktop over Gb networks

I am trying to learn a way to project my screen to a TV/another computer but have as little lag as possible, and without Miracast Ideally fast enough that I could (theoretically) use it instead of ...
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22 views

How to set up a multi-user text mode in Debian wheezy 7.6?

I'd like to set up one of the available runlevels to work as a 'multi-user text mode' runlevel. Such mode available e.g. on CentOS. Another example of what I need would be what you get when you add ...
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11 views

redis: Fixing memory error when saving snapshot to database

I see the following error in redis logs: [17541] 10 Aug 16:13:21.055 * 1 changes in 900 seconds. Saving... [17541] 10 Aug 16:13:21.055 # Can't save in background: fork: Cannot allocate ...
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37 views

Format a protected (corrupted) sd card

Some days ago one of my micro sd cards (a 32gb by Samsung) "decided" it is protected. It has no physical switch and I haven't found a way to format it yet. Every software I try to use says it is ...
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18 views

How to encrypt secondary hard drive without needing to type the password all the time when logged in on linux?

I have a notebook lenovo w520, with second HDD instead of DVD-ROM. I would like to encrypt this whole drive (there is only one partition) But as soon as I am logged into my ubuntu 14.04 with my user ...
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18 views

Where is my project located on the SVN server?

I have a SVN server on a remote Pi, I have SSH access to it. I use it mainly to store revisions of web projects that I do, so I wanted to set up a continuous integration environment, so that every ...
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2answers
25 views

Simple proof-of-concept stunnel configuration

I am trying to setup stunnel to access a HTTPS web service from a HTTP-only client. Should be a piece of cake, right? I have the following stunnel.conf: client=yes verify=0 [test-https] accept = ...
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8 views

Limiting amount of emails sent by a process

I have a script that checks some stuff, and then emails me if there is a problem. I'd like this script to run every min under cron, I don't want to get hundreds of emails if it fails - just one or ...
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3answers
39 views

In a Linux shell, why does backslash-newline not introduce whitespace?

When using the Linux shell, I come across the following situation: $ A=B\ > C $ echo $A BC In my mind, when the newline encountering escape character, it can not be a CR character but it still ...
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1answer
18 views

Restart Firefox after crash fails

I'm using Firefox 31.0 on SuSE Linux Enterprise Desktop 11.2, launched from a terminal window. Every now and then Firefox crashes, which in itself isn't too big of an issue as Firefox saves the ...
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2answers
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Routing all traffic over VPN on Ubuntu Linux

After having spent now hours troubleshooting, trawling potential solutions on this site and others, and I am resigned to beg the advice of my betters. I am working to route all network traffic on an ...
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18 views

Starting SVN server at system boot

I have a Raspberry Pi Model B with Raspbian. I installed the SVN server and tested it with svnserve -d -r /home/pi/external_hdd/svn_root It works, it accepts connections and makes users checkout ...
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1answer
22 views

output awk print to two separate files

Here is my current code md5sum filename.iso | awk '{print $1} {print $2}' This gives me two separate lines. The first line is the md5 of the file and the second line is the name of the file. I ...
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9 views

Watch file in a directory whether it is being downloaded or not

I am using linux. I am saving a livestream file using rtmpdump rtmpdump "ALL the required parameters" live1.flv Many times the rtmp or livestreaming stops after 400 - 1000 sec. So again I start ...
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14 views

How do I change the look of the context menu under Linux Mint 17?

I've tried every type of theme, and none change the look of the context menu. Currently I'm running the Linux Mint theme for cinnamon and Shiki-colors-matacity-fixed for the window borders so they ...
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14 views

Does GRUB2 support dynamic menu entries for removable external storage?

I want to boot my laptop from different kinds of external media, but my BIOS doesn't detect all of them as bootable devices, i.e. SD Cards. I don't want to manually create menu entry each time I ...
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1answer
19 views

How does a process change the environment variable of its parent process?

Take cd as an example. Also, it is cd that reminds me of this question. When we input "cd" and press enter on a terminal, a cd child process of the terminal starts and in my mind all things about cd ...
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1answer
14 views

Less - Select to clipboard

In Less (Linux terminal), I can select lines with the mouse and then use Ctrl+Shift+C to copy to the clipboard. This only works within the displayed part of the terminal. How can I select more text? ...
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1answer
10 views

DVDStyler: Burninng Arabic subtitles error

I have Xubuntu 14.04 64 bit, I'm trying to burn 24 season 9 on DVD to be used on a DVD player, with Arabic Subtitles. I get this error, anyone knows what it means? ERR: Error 84 -- Invalid or ...
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18 views

How to revert the settings in a live linux USB?

I created a live usb using Ubuntu 14.04 and made it persistent through universal usb installer.I created 2 user accounts in my ubuntu and set passwords for them.I made one of them as automatic in the ...
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1answer
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Is there a way to output the status of dd (on OS X) during the copy process?

I am using dd to copy iso images to a thumb drive. Is there a way to output the status of dd during the copy process?
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Turn all workspaces into windows or split screen to show several workspaces at once

I recently installed Ubuntu 14.04 and I'm a long time Windows user, I was used to have a lot of windows open at the same time, I was told I could use workspaces in linux to replace the need for ...
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19 views

Swap alt and ctrl in certain programs on Linux

I would like to swap alt and ctrl key when launching certain programs on Linux, such as zsh and emacs, while keep the original keyboard layout when using other programs. Is it possible to do so? ...
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installing pgplot based program under xubuntu 14.04 gives error

I'm trying to install a software that uses pgplot. I successfully installed pgplot (all demos are running properly), but when I try to install the software based on it I get the following errors: ...
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1answer
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Checking LAMP Installation in Linux

I had installed PHP, MYSQL and APACHE in linux server, How can I check the installation and running status of Apache, MYSQL, PHP are correct in Linux server?
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13 views

Broswers loading a page that doesn't appear to exist in DocumentRoot

This is driving me bonkers. I have Apache running on a Raspberry Pi and I'm working on a website that has a user log in that leads to a page where users can enter data and send it to a MySQL database. ...
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1answer
27 views

Find and run script from another directory

I have a script, say data.sh, which takes many data files in the same directory and process them. I have many directories with different files but I have the same script in all. I can routinely go to ...
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20 views

Linux MD software raid stripe cache size

From what I can piece together the /sys/block/md0/md/stripe_cache_size is for raid5 and 6 set at a very low default value to avoid starving machines for memory. By increasing this value you can get a ...
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16 views

get current terminal display text from another terminal

I've started a job in a terminal that will print some data to the screen that I need. I know I should have used screen or told the terminal to log to a script but I did not. Also, I do not have the ...
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1answer
24 views

Writing a secure login script

I'm trying to write a secure login script to allow a user to have limited access to a server and change particular options. My method for doing so is via a python script executed by the users ...
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6 views

readlink -f does not return absolute path

All of over the place people talking talking that readlink -f ... will return the absolute "canonical" path of the link target. No it does not for me, it returns the relative target of the link, ...
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1answer
33 views

how to add multiple static ip addresses in ubuntu 12.04?

i want to add multiple addresses ( 20 addresses) to a single linux box. To test the master slave configuration i want to setup this one.so these 20 ip's will act as slaves. i know how to add the ...
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1answer
21 views

Live stream backup/alternative source

Hello I Am using ffmpeg and ffserver to stream mpegts with h264 encoding on an Ubuntu Server How Can I create a backup/alternative server so that if server1 stopped for any reason server2 takes its ...
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2answers
32 views

Set Linux file share permissions and ownership on a large NAS quickly

I have an isolated cluster of Linux systems, Windows systems, and appliances all mounting a set of remote shares (via NFS and CIFS). The OS sharing out the filesystems is Linux. I frequently create ...
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46 views

How to install libwebkit (libwebkitgtk-1.0.so.0) in order to run CodeLite?

A pre-requisite for running codelite is WebKitGTK. codelite: error while loading shared libraries: libwebkitgtk-1.0.so.0: cannot open shared object file: No such file or directory I'm on CentOS, ...
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LINUX Bash - Recursively Create Intermediary Directories and Move Files of Type Into New Directories

I've used StackExchange before and lurked on SuperUser but first time posting. Here's what I'm trying to do. (Pseudo) For Each DIR containing $file *.Item Mkdir ./dir1/dir2 Mv $file ...
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1answer
47 views

CentOS 7 hangs after update on Workstation 10 after “[sda] Assume drive cache: write through” line

I recently updated my CentOS 7 VM and it won't pass the following line: [sda] Assume drive cache: write through I tried changing the run level to 3 and run xfs_repair but it still doesn't boot. ...
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how to detect availability of GUI

For Linux: I have a text mode installation (bash) script and a graphical mode setup program (a Free Pascal binary). I'd like to run the graphical setup when a GUI is available. How do I detect which ...
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RHEL 6 HP Tape Driver Installation Troubles

Trying to install tape drive drivers for the HP Ultrium 3280 SAS using this guide http://h10032.www1.hp.com/ctg/Manual/c02262008.pdf Whenever, I try to execute mkltfs I get this error mkltfs: ...