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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du -sb giving different results for 2 directories with same contents?

I have a directory A with 1000 sub-directories (000-999) each containing 3500 .jpg files. I wrote a PHP script that copied each of those files to another directory B in the exact same structure, ...
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20 views

Booting PC that won't boot Windows w/ Linux

My old laptop, an Acer Aspire running Windows Vista Basic Edition, will not boot up. When I power it on, I see a blank black screen 90% of the time (but it 'lights up' if you know what I mean, the ...
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5 views

xscreensaver-command to blank screen after a timeout

I have been using xscreensaver-command -lock to display my screensaver and lock the computer. Unfortunately this screensaver runs interminably; I'd prefer the screen to blank after a timeout. How does ...
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Fedora - Flash player - sites with links to www.google.com are not working

I have serious problem. I have installed Fedora 20 LXDE. I have installed flash player and plugin for Firefox using this manual: install flash in fedora 20 But now, every www site that refers to ...
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22 views

Is there a way to really “hide” a workspace?

sometimes when I am working with my fedora, people tend to peek in my screen and wonder what I am doing. So, I started using multiple workspaces, but then these friends started checking all my ...
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Crunchbang - No root file system defined

I used UNetBootin to put the Crunchbang stuff on my 32GB USB. I went through the install process booting to the USB and guided partitioning. However, when I tried to 'Finish partitioning and write ...
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3answers
64 views

Can anyone explain why this pattern matching is not working using sed

Trying to print out specific times of logs based on recommendation from this thread from super user. I am not sure why my patterns are not being matched by sed. I have the sample date and time I am ...
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1answer
49 views

Matching only numbers that come in numerical order

I have numbers in [.] indicating the page number of an orginal printed document I am transcribing. However, the document also contains other numbers in [.] that do not correspond to page numbers. For ...
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1answer
23 views

Connect as “root” but write as “apache” with samba and some configuration tips

I have a VMware virtual machine running CentOS 6.5 and I have installed samba.x86_64 0:3.6.9-168.el6_5 package for sharing resources between virtual machine and host (Windows 7 in my case). I have a ...
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19 views

Move a dir which contains compiled apps

I want to move a dir e.g. file_download to myappDir. I know I can do this via mvcommand. The main problem I have are compiled apps within my dir file_download. And after compile has been finished I ...
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How to safetly add a repository

To add a repository to my Centos server, I am doing the following: wget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 https://www.fedoraproject.org/static/0608B895.txt gpg --quiet --with-fingerprint ...
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27 views

Automounting External USB 3.0 HDD with truecrypt on linux

Is it possible to mount my external HDD usb device which is encrypted with truecrypt on plug in? I use it only on Linux.
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16 views

Fonts not displaying well, Linux

I downloaded a set of truetype fonts and copied them to /usr/share/font/truetype, I gave them a 644 permission and did fc-cache -f but they are still not displaying. It is a fixed-width font and I ...
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0answers
41 views

Encrypting most of RAM via swap

I am looking to encrypt most of the RAM on my Linux machine by creating a very large swap partition mounted on a RAM disk and encrypting it. The idea is that if the section of unencrypted ram is ...
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1answer
32 views

Captured packets with tcpdump vs. tcpdump > file

Why is there such difference in number of packets captured by tcpdump when the output is written to console and to file? $ tcpdump ... 1681 packets captured 1681 packets received by filter 0 packets ...
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22 views

Linux Install On Lenovo Laptop

I would like to install Linux on my Lenovo G500 I5 laptop. I tried to load Linux mint 16 and it would not boot. Any suggestions?
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1answer
22 views

Securely erase Intel SSD using Live Boot CD

So I am selling on a computer and wish to securely erase the HDD. I've booted into a Live CD (Ubuntu) and run the following commands: sudo hdparm --security-set-pass NULL /dev/sda and sudo hdparm ...
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create iso file from installed Linux mint in hdd?

can I create an iso image of Linux mint, which I have already installed in my hard disk. I already used brasero but I don't know what files are to be copied to the directory thanks in advance.
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1answer
34 views

Running a script from ssh, logging out and continuing the script

The overall question here is - how do I automate sshing into a machine, running a script, and exiting without killing the script? I know that this has been answered several times, but I'm not having ...
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12 views

Red Hat Enterprise Linux Desktop clone

Just as CentOS is a near clone of Red Hat's Enterprise Linux server product, is there a near clone of Red Hat Enterprise Linux Desktop? I'm aware of Fedora, but I don't see it as a clone of RHEL ...
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2answers
39 views

Unable to boot Windows 8 after an interrupted Ubuntu installation attempt

I have a Sony Vaio notebook with Windows 8(UEFI) installed,after trying to install Ubuntu 12.04 LTS(I cancelled the installation and restarted the pc) from a usb sticky,every time i turn on the ...
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2answers
26 views

Make a bootable usb drive a regular storage drive again in Windows?

I made a bootable linux drive using Win32 Disk Imager. The image I wrote on the usb drive was about 4-5 GB. When I stuck the drive in to re-use it as storage, the only part of the drive that is left ...
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1answer
22 views

How to install Ultisnips with Snippets on Linux?

I'm using Slackware and trying to install and use Ultisnips. I use Pathogen and the documentation says the following: > Using Pathogen: UltiSnips-using-pathogen If you are a pathogen user, ...
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17 views

No Bluetooth adaptors found

I have problems enabling my bluetooth in my newly bought Lenovo Ideapad B490 Series. I have searched the internet for solutions. It isn't even listing in lspci or lsusb. Any help would be greatly ...
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2answers
33 views

Performance expectations of multiple solid state drives [closed]

I recently purchased a second solid state drive, as mine is reaching its max capacity. I currently dual-boot Windows and Linux on the same drive, and the plan is to move the Linux partition to the ...
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Script to open mutliple terminals with multiple tabs each, move and resize these and execute commands

So I am trying to make a bashscript, which does the above mentioned. Background is that I have to keep an eye on lots of logs, and theres have to have opened many console side-by-side. E.g. one ...
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1answer
39 views

Using computer as router to monitor network

For about two weeks now, a friends family has trouble with their internet connection. They're telling about situations where the connection completely drops for hours (although they still seem to be ...
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1answer
71 views

Do I have to install Openssl 1.0.1g in usr/local/lib64 to overwrite usr/lib64 one? (CentOS 6.4, heartbleed issue)

I am using a VPS, I need to upgrade openssl with the new package in consequence of the heartbleed vulnerability issue. But I am a newbie in managing server, I need to know if I am getting this right ...
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1answer
45 views

I accidentally formatted the wrong volume - is it possible to restore the previous Ext4 filesystem?

I know that a similar question has already been asked. This morning I accidentally formatted the wrong volume, containing mostly video files (about 30GB each). I am currently trying to restore the ...
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1answer
32 views

uninstall libc6 package by dpkg

I have install "libc6_2.17-0ubuntu5.1_amd64.deb" on my ubuntu server 12.04. The orginal libc6 on system is 2.15. After install the package, I check it by: ldd --version it shows: ldd (Ubuntu ...
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2answers
28 views

Apache runs locally but can't be accessed from other machine

I'm running Apache 2.2.3 in a VM for a test environment on CentOS 5. Apache is running and responding to requests on the VM itself. If I run "lynx localhost" on the VM I do get my test page. When I ...
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51 views

Multiple Windows installers on a USB stick

I've recently got my hands on one of those SanDisk Extreme 64GB sticks and started tinkering with it. During this story, please keep in mind that this is a model where removable bit is set to 0 (which ...
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34 views

how to stop broadcast service in linux

I have a query: in our environment all Linux servers have broadcasting enabled I need to stop the broadcast service in my Linux server. I have tried to stop the service by doing the following: ...
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21 views

How to install PHP5.3 instead of PHP5.5 in Linux

I am fairly new to Linux (just getting set up using the Mint 16 distro), and I got everything working correctly with my Apache 2.4.9 with MySQL and PHP5.5, but I am using this for local Web ...
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2answers
24 views

Using a laptop as a wifi adapter for desktop with linux

I have a laptop running Linux Mint 13 with a working wifi card and a desktop with no wifi card running Arch Linux. I temporarily have no access to a Ethernet connection, so I'd like to use my laptop ...
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57 views

How do I get USB devices working with BeagleBoard xM and Yocto project Linux?

I've built a minimal Linux for my BeagleBoard xM (Rev C) using the Yocto project build appliance, and installed it on a uSD card following their instructions. It works (Yay!), has a small footprint ...
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3answers
46 views

Grep for block surrounding an error message

I want to grep for the block of logs around a particular error message. Say I know my log looks like this: [----] I, [2014-04-10T19:12:36.294512 #1910:e93004] INFO -- : Started GET "/ems_infra/new" ...
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1answer
20 views

Using find and wc -L to find files containing lines longer then 500 characters

I have this command: find . -name "*.php" -exec wc -L '{}' \; And I believe it gives me the count of the longest line for each file. But I'm looking for a way to only print out the count and file ...
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2answers
28 views

Rsync folders automatization

I've got a folder on the remote server, to which I'm connecting via SSH. When I need to synchronise folders I'm using manually access via scp. (I'm synchronising my folder with the folder on the ...
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26 views

linux + Open VPNC Client can service checkpoint vpn or or nortel vpn?

regarding the Site: http://www.oucs.ox.ac.uk/network/vpn/linux-solaris/index.xml?ID=VPNC My question: As we know OPEN VPNC support Cisco VPN's clients But not clearly if VPNC can also support a ...
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Cloning Linux and Windows from two separate disks to a single SSD

Backstory TL;DR: cloned OpenSUSE from /dev/sda2 to /dev/sdc1, Windows 7 from /dev/sdb1 to /dev/sdc2; formatted /dev/sda2 and /dev/sdb1; reconfigured GRUB2 and installed it on /dev/sdc; OpenSUSE loads, ...
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1answer
31 views

Bash alias with Sed not working

Does anyone know why this alias isn't working? alias tailsed="tailf error.log | sed -e 's/\\n/\n/g' -e 's/\\t/''/g'" I've tried replacing the single quotes with doubles so that it's like: alias ...
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30 views

High DPI VMWare

My display is 4k. When I run VMWare, my linux guests look like postage stamps. Sadly, none of them support HDPI scaling (Running LXDE/XFCE mainly). I'm also interested in "Unity Mode", but ...
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1answer
36 views

unrar all rar files in a directory with linux

I am trying to extract many rar files at once, but with no successful. I am trying in the order: >ls *.rar|xargs unrar x >ls *.rar|xargs unrar e >unrar e -r *.rar >for f in *.rar;do unrar ...
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How to read a 51gb log file?

Well, it seems something went horrible wrong and now I do have a log file with a size larger than 51gb. Are there any (linux) tools that can read/open files of that size? I want to read the log file. ...
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gcc --as-needed linker flag not working

I have two computers with Gentoo, both on AMD64. I try to build a following program: int main() {tgetent();} The command to compile is: gcc -v 1.c -Wl,--as-needed -lncurses On one computer it ...
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26 views

command for copying files in linux to usb drive?

I want to copy files from linux system to the usb flash drive connected to it. I ma using labcar VMware with linux operating szstem in it. could some one tell me how to copy the files from linux ...
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20 views

Unable to access samba file share

Aim Trying to access Samba share from Debian box to all other machines within my LAN. If it's any help, my Samba version is 3.6.6. Problem The Debian box is not showing up anywhere within the ...
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1answer
15 views

See total download speed on server CentOS

I have a few PHP scripts running every 10 minutes on my server downloading backup files, Is there a way to see the total MB/s download speed the server is currently pulling ? The server is running ...
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24 views

Debugging linux kernel, SIGKILL

Trying to debug linux kernel (vmlinux) with gdb during my education, but after I run kernel I just got "program terminated with SIGKILL": gdb vmlinux-3.11.0-12-generic ...GDB header... Reading ...