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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Linux: automatic bonding of WiFi and Wired interfaces — how does it work?

To my amazement, I just discovered that my Ubuntu 13.04 system seems to support something like automatic network interface bonding. If I establish a TCP connection over WiFi (eg using netcat on ...
40
votes
2answers
5k views

what is the difference between “command && command” and “command ; command”

I see these two usage on Ubuntu "command && command" and "command ; command", e.g. apt-get update && apt-get upgrade What would differ if I use apt-get update; apt-get upgrade? I ...
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2answers
679 views

SSH from Mac to Ubuntu

I successfully ssh-ed to my Ubuntu machine from a PC through both local and over the internet. However, I got no luck with my Mac. I followed all the steps for SSH key gen and configuration and tried ...
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3answers
114 views

Why will “ls” not list files starting with “.” in Linux

I was searching for a ".android" folder and used ls all over the place, until I decided to use locate (after an updatedb) and found that it was in my /home/johndoe/ folder all along. When I ls on the ...
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2answers
1k views

Netgear router running DD-WRT shows incorrect interface bandwidths in SNMP

I recently switched to a Netgear WNDR3700 (v2) running DD-WRT v24-sp2 (02/19/11) std. It's basically working fine and I'm generally happy with it, but any tools that query the router via SNMP show ...
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1answer
3k views

Make Live USB with dd

The last time I booted from USB was back in 2006. Ever since, I keep failing at making live usb bootables. I tried getting Fedora 18, Ubuntu, and ton of other distros to boot from USB and never ever ...
40
votes
4answers
36k views

How can I avoid SSH's host verification for known hosts?

I get the following prompt everytime I try to connect a server using SSH. I type "yes", but is there a way to aovid this? The authenticity of host '111.222.333.444 (111.222.333.444)' can't be ...
2
votes
1answer
626 views

I get the error “usb 1-6: device descriptor read/64, error -110”

When trying to mount the sdcard from my android tablet under linux I get the following error in dmesg: usb 1-6: device descriptor read/64, error -110 The card doesn't show under lsusb or lsscsi. So ...
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votes
2answers
653 views

Concatenate pdfs without losing bookmarks

I have two pdfs, A.pdf and B.pdf, each of which has some bookmarks (perhaps added by jpdfbookmarks). I'd like to concatenate them into one big file, AB.pdf. So I tried one of my favorite tools, pdftk: ...
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votes
1answer
49 views

software installation on RHEL4.0

I have installed the package apache/httpd-2.0.65 (which is not a RPM package),but after installation when I am run the command #rpm -qi httpd It is showing an output "httpd service is ...
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1answer
281 views

Linux - How to copy a list of files with special characters to new directory

I have a list of files with paths, some of the files have special characters such as spaces, hyphens, single or double quotes like the following: /Music/Allman_Brothers/Filmore_east/The Allman ...
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1answer
179 views

Compile Error: /usr/lib/x86_64-linux-gnu/libmysqlclient.a: No such file or directory

make all rm -rf build/gov/fcc/tvstudy; \ javac -sourcepath src -encoding UTF8 -classpath build -d build src/gov/fcc/tvstudy/AppManager.java; \ jar cmf Manifest.txt tvstudy.jar -C build gov/fcc/tvstudy ...
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votes
2answers
360 views

Installation of httpd-2.0.65

I have installed the package httpd-2.0.65(which is not a RPM package),but after installation when I am running the command #rpm -qi httpd It is showing an output "httpd service is ...
0
votes
2answers
167 views

Swap is empty on Linux

How can I create or resize the swap memory on a linux device (Amazon Linux AMI). The problem came when I run a program and it gave me that errors: IOError: [Errno 28] No space left on device INFO ...
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0answers
321 views

how to change ip address in the correct way on linux?

I'm working with wheezy. I have configured the /etc/network/interfaces file so that the wlan gets the ip address from the dhcp server. after that I have imposed a different static ip address in the ...
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votes
2answers
565 views

is it possible to mount hostname specific nfs share in /etc/fstab

I want to mount a hostname specific nfs Filesystem in /etc/fstab. 10.0.0.1:/testmy/<hostname> /nfs_for_host if there any Variable to do this ?
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2answers
2k views

apache crontab not executing

I use cron to execute some php scripts (owncloud background tasks etc). My server runs nginx and PHP via php-fpm, which by default runs PHP processes under the apache user, the only user with write ...
1
vote
1answer
400 views

Automatically lower volume during Youtube advertisements

Would it be possible to implement a solution to automatically lower audio playback volume during Youtube advertisements, on PC/Mac/Linux, or on IOS/Android? I don't mean necessarily the Youtube video ...
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vote
0answers
96 views

rsync - Exclude directories but include files within them

I have an rsync command which I'm using to synchronise two directories: rsync -CurvtOlon --delete /home/source/path/ /home/dest/path/ When I run the command, it recursively scans all of the source ...
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0answers
33 views

Can't connect to the router when using Linux as a router

I am using Linux as a router to filter and tunnel all the traffics from LAN through PPTP VPN, I managed to set up the router, which is an Ubuntu virtual machine, and the client, which is also an ...
0
votes
1answer
251 views

amr files properties - recording date viewer

I used my old Nokia phone to record some conversations. I copied the files to my computer. Files are in amr format. The problem is I don't remember when did I record those files. Is there a property ...
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0answers
66 views

Efficient way to have several operating systems on one machine

I want to have several operating systems on one computer, but I want to do it in the most effective way. So far, I have been using VirtualBox - host os + several virtual machines. But I want every os ...
0
votes
1answer
741 views

Routing between subnets in a Linux virtual machine

I have two Debian Linux Virtual Machines with two virtual adapters each, both adapters are on separate subnets. I need two subnets to test security tools Subnet 1 - 192.168.50.x Subnet 2 - ...
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votes
2answers
450 views

Make a USB stick bootable without a Linux ISO image, just a kernel

I have a bootable Linux on a 2 GB USB stick with 770 MB used, and another stick that is 1 GB. The aim is to put the files on the 1 GB stick and make it boot properly into Linux and run the software ...
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votes
1answer
186 views

randomly losing dns resolving ability

I am seemingly randomly, but frequently (every few mins) losing my internet connectivity. The problem is not on the ADSL modem, but on the linux router, that follows. A DNS server (bind) is running on ...
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votes
2answers
128 views

My computer has windows 7 professional.I created a virtual machine of Deepin12.06 in virtualbox. Unable to copy from guest to host? [closed]

I want to copy files from a deepin linux virtualbox machine to my windows 7 host machine? I have not found any good answers yet.Please I need a tutorial or screenshot will be good.
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votes
0answers
259 views

How is /sbin/init found during lilo boot

I just cloned my root partition (in anticipation of a dist-upgrade), changed lilo.conf and fstab (in the cloned partition) and ran lilo. But alas the system won't boot from the cloned partition. I ...
1
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1answer
826 views

How to re-enable sysvinit on Debian

So we had a couple of Arch guys hack a Debian install up for an embedded system (that is no longer so embedded) and they disabled Sysvinit in favour of using multiple linked /etc/rc.* files. ...
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3answers
552 views

No external installation mediums possible, can I boot this kernel through loadlin? [closed]

For this task some bootable USB stick drives are available, but the CD drive is broken without near chances to get a new, so can not cdimage burn and boot. Machine (Dell Latitude C400) does not seem ...
1
vote
1answer
193 views

Better way to extract a substring in bash

I have a list of mp3 files named like so: $artist/$album ($year)/$tracknum $title.mp3 Many of these tracks have incorrect or missing tags, which I am correcting through the use of id3v2 and regex ...
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votes
15answers
43k views

Untar, ungz, gz, tar - how do you remember all the useful options?

I am pretty sure I am not the only one with the following problem: every time I need to uncompress a file in *nix I can't remember all the switches, and end up googling it, which is surprizing ...
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votes
1answer
217 views

rsync - resume broken transfer (idea of rsync)

I have remote stations that collect data from sensors (ARM Debian) and transfers sets of data (about 1.1 MB) every 15 minutes (server is full Debian). On one station GSM reception is poor and standard ...
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0answers
89 views

Windows 8 Volume Shadow Copy and Arch Linux

Guys I'm with a problem regarding the backup of my windows 8 machine. It fails reporting: "A shadow copy could not be created. Pleasse check 'VSS' and 'SPP' application event logs for more ...
0
votes
1answer
105 views

How do I copy tar files from User-mode Linux to the host?

I have some tar files inside a User-mode Linux distribution. I need to copy those files from a UML instance to the host. Does anyone knows how to do this? Thank you for your time.
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votes
2answers
4k views

Why can't I highlight text in a linux terminal emulator with shift+arrow keys?

These are the standard text editing keyboard shortcuts that I use constantly whenever editing text in, literally, any linux application other than terminal emulators: left+right arrows to move ...
1
vote
1answer
848 views

Use 'find' to find and delete large files of a certain type

I am trying to find and rm -rf large files in RHEL, but what I would expect from this command that would give me purely the file directories, feeding them into rm -rf, it is not removing them. My FU ...
0
votes
1answer
443 views

Can Dual Channel RAMs from different manufacturers cause freezes?

I recently bought a Samsung series 3 laptop and it had two RAM slots with one free and one with ADATA 2GB 1RX8 PC3-12800S-11 DDR3-1600MHz CL11 RAM in it. Since my Ubuntu 13.04 was running slow when ...
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0answers
129 views

Shell command to find width of a text rendered with some font

I need to find the width, in pixels, of a string displayed with some font. I know that I can do: dzen2-textwidth \ -adobe-times-medium-r-normal--8-80-75-75-p-44-iso8859-1 \ "A Tale of Two ...
3
votes
3answers
841 views

How to extract and/or remove the last page of a bunch of PDFs?

One of our vendors started tacking on an unnecessarily huge image to the last page of PDFs we get from them. I need to trim this out. However, we have hundreds of these, so it's prohibitive to go in ...
0
votes
1answer
452 views

Cannot see shared folder in /mnt/hgfs

I am trying to share a folder between Lubuntu 13.04 (in VMware player) and Windows 7 64 bit. I followed a tutorial till step 16. I typed a command and saw nothing. I also went into the /mnt/hgfs ...
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0answers
236 views

ifup, ifdown on centos 6.3 guest on virtualbox

On a Mac OSX I'm running virtualbox 4.2.16 with a centos 6.3 guest. On the centos guest when I issue ifdown eth0 or ifup eth0 I get: usage: ifdown <device name> Same thing with eth1. What am ...
2
votes
3answers
4k views

Unable to mount DVDs on Gentoo

I'm unable to mount any dvd on my HP 6735s laptop running Gentoo (with combined stable (+) and testing (~) ebuilds). Here's everything that I can come up with: $uname -a Linux aiur 2.6.32.6-aiur-r5 ...
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vote
2answers
158 views

Recover filenames for doc and RTF

I have some hundreds of .doc and .rtf files, which lost their original names after recovery from a damaged hard disk. Basically they look like this: f132765720.rtf f136246056.rtf f146124320.doc ...
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votes
2answers
1k views

How do I disable terminal control escape sequences in Linux?

I am writing software that interacts with an embedded device running a version of busybox Linux. Basically, I am just sending commands to the device and parsing the output from the commands . The ...
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votes
2answers
275 views

Video playback shows fault lines where it looks like parts of two frames are being spliced together (edit: called “tearing”)

I'm using Gentoo Linux with 3.8.13 x86 kernel at home and 3.10.4 x86_64 kernel at work. When I'm watching 720p or 1080p HD .mkv containing a H264 MPEG-4 video in full screen mode (VLC, mplayer) I'm ...
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vote
1answer
251 views

Using netbook as a terminal for desktop linux PC

I have a desktop PC with Arch Linux 2013.08.01. I also have an old HP Pavillion DM1 netbook. I'd like to configure the netbook so it is simply a "terminal" of the desktop PC over the network. I'd like ...
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votes
4answers
2k views

How to start a terminal window in the center of the screen?

It's kind of annoying how some Ubuntu (GNOME, X Window System) programs start at the top left of my screen. Is there a way to make the program start in the center of the screen. (Yeah I know it's a ...
0
votes
1answer
223 views

Can't format hard drives under RAID-1

I have a Gigabyte GA-EP45 extreme, which contains a "Intel Matrix RAID controller". On lspci outputs as: RAID bus controller: Intel Corporation 82801 SATA Controller [RAID mode] I bought two ...
1
vote
1answer
56 views

Is there a way to migrate the wi-fi configuration from one notebook to another?

I would like to find a way to migrate the wi-fi configuration from a notebook to another. I have already a working wifi configuration on the notebook A. Let's say I want to export all the necessary ...
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2answers
132 views

Why does running a program in bash work, when running it in the Menu doesn't?

I presume there is something in the JWM window manager - or Puppy Linux Lupu 5.01 itself that is conflicting with the normal loading of GMPLAYER.... I would like to know how to troubleshoot, and fix ...