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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1answer
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controling tmpfs memory usage

Any way to limit the amount of RAM used by tmpfs wihtout limiting the amount of swap? Most documentations says that tmpfs' size option will limit the total size of the tmpfs partition and later on ...
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2answers
3k views

Running .sh file CentOS6

I have a script for installing a program. https://github.com/mkonecny/airtime_centos/blob/master/centos.sh When I try to run it I get: 64-bit installer only LANG=en_US.UTF-8 install/uninstall ...
3
votes
1answer
4k views

How to listen to microphone output on Linux?

I would like to hear the microphone output during Skype calls. I have tried fiddling with alsamixer settings and made sure that the mike is unmuted but still cannot get to hear the mike in either ...
3
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3answers
6k views

Cloning an SD card onto a larger SD card

I'm using Ubuntu 12.04. I have an old 4GB SD card, and have just bought a new 16GB SD card. I would like to copy everything from my old 4GB SD card onto the new 16GB SD card. I was afraid that the ...
0
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1answer
107 views

How to stop network manager from connecting to other networks

I am facing intermittent wireless network connection. I have already specified a SSID for network manager to connect to. But whenever the network is down, the network manager will attempt to connect ...
2
votes
1answer
128 views

Limit a user to VI and Tail

I'm running a server on centos 6.0 and I'm looking for a way to limit ssh access of one user to only tail and vi and only in their home folder. I found some guidelines to the home folder part but ...
1
vote
2answers
373 views

Where can I limit the processor usage of a process that is copying files?

How can I limit the processor usage limit for the copying process when it is running? My friend and I are planning to get a PC to host servers and we need to know how to limit this usage to the ...
0
votes
1answer
833 views

How to Change Folder TimeStamp Recursively in Windows/Mac/Linux/Unix

FOR WINDOWS: I need to change the TOP FOLDER timestamp to reflect the latest file or the latest sub-folder added. Note, I do not want to change the sub-folder's timestamp properties in which no newer ...
0
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1answer
341 views

Setting mouse accel to specific value when pointer id changes each startup

I have a set of commands that I manually enter each time I start up my Ubuntu installation (12.04). They help even out my mouse pointer acceleration as setting them in the mouse settings tab does not ...
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votes
3answers
7k views

How to find model number of Linux disk drive?

I have a Linux box with five disk drives, one of which I want to replace. The offending drive is /dev/sdc, but that doesn't tell me how to distinguish the hardware. The drive is SATA and the ...
4
votes
1answer
1k views

Resize and lower the bitrate of mp4

I wanted to execute the following command: x264 --level 30 --profile baseline --bitrate 900 --keyint 30 -o test.mp4 video01.mp4 --vf resize:720,480 But I get following output(error) raw [error]: ...
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2answers
5k views

Dual booting Windows and Arch Linux (with GRUB2) - after using Windows, Windows Boot Manager made first in boot priority list

I am dual booting Windows 7 and Arch Linux (both 64bit), with GRUB2, using the 64-bit EFI version. I partitioned my drive into a GPT drive and installed Windows first according to this guide. I then ...
2
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1answer
642 views

How can I play and seek video and audio from separate sources simultaneously?

I have these files: video.mkv (with no sound) audio_en.mp3 audio_ru.mp3 audio_pl.mp3 And I want to simultaneously play video.mkv and audio_en.mp3 and simultaneously seek in those files (move ...
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votes
0answers
174 views

Amplify alsa capture beyond 100%?

I'm using ALSA. The volume of my mic is so low that even 100% of capture volume is not enough in a skype conversation. Is there any way to amplify the capture volume beyond 100%? I cannot use ...
0
votes
1answer
83 views

Are automatic updates in Linux is a good idea? [closed]

We all know that keeping a web server updated is very important to avoid bugs and been hacked. I had experiences where an update broke an application: For example: you have a site running with PHP ...
0
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1answer
476 views

Why maldet shortcut command doesn't work but full path does?

As you can see in the screenshot, shortcut doesn't work but full path does. Any ideas how to fix it? I am logged-in as normal user then su to root, since direct root is disabled btw.
1
vote
1answer
864 views

LVM needed for encrypted, expandable RAID?

I am currently building a RAID-5 with three 2TB HDDs on Debian. I am wondering how I could configure my RAID to be encrypted and expandable in the future. I do not need nor want partitions, but must I ...
2
votes
1answer
39 views

Manage mysql files with nother user

I need to copy files in /var/lib/mysql/database/* yo another dir with admin user. File in /var/lib/mysql/database has 660 mysql:mysql I already add admin user to mysql group, but it didn't work.
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3answers
904 views

Is there a way to quickly identify files with Windows or Unix line termination?

I know we can use dos2unix to convert between Windows and Unix line termination. I am wondering if there is any command that can tell me if a file has Windows or Unix line termination?
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vote
3answers
593 views

How do I use the watch and jobs commands together in Bash?

How do I use the watch command with jobs command, so that I can monitor when a background job is finished? I execute it as follows, but I do not get the output from jobs: watch jobs If I run jobs ...
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vote
0answers
240 views

My username and password dont work on SHH Trixbox

I have a Trixbox Linux instaled (based on Asterisk distribution). I can acces the console normally with my root account. Its very simple, restart my machine, type login: root and password ***** and ...
0
votes
1answer
416 views

When starting up mumble, or teamspeak, and it goes to record audio (for say voice chat) all playback is held up

On Fedora 17. Using a ct-xfi driver. I have my speakers configured, and everything works great. Until I start up mumble, or Teamspeak, and either one hooks up to start recording audio. Then it's all ...
1
vote
1answer
659 views

Why does xscreensaver not allow me to enter my password?

I'm running the latest version of LUbuntu (just downloaded and install this week). This morning when my computer woke up the xscreensaver dialog popped up saying "Authentication failed". However, it ...
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vote
3answers
806 views

fit multiple pdf pages to one

Is it somehow possible to "zoom out" a multi-page PDF to fit all pages to one via command line (must work under Linux) e.g. I have a PDF generated with XSL:FO/FOP with a table (the red one in the ...
0
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1answer
35 views

Is there a server/client like VNC that a user can start to then login to a terminal?

VNC provides a way for a regular user to start a server on a host, then use the corresponding client to connect to the VNC server from another host. I'm looking for a server/client pair that works in ...
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3answers
56 views

How can I grant permission for a user over a direcotry in linux

I use chmod to change the file permissions. But what if I needed to grant full control permission for the logged in user over a directory ?
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3answers
4k views

Check that Laptop Fan is Functioning Correctly on Linux

I just completely disassembled and reassembled my Dell Studio 1555 laptop. I had to remove the hard drive, WLAN card, unplug optical drive, display connector, even the motherboard to get to the fan. ...
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2answers
938 views

can not mount romfs image

with mount version 2.21.2 I get this error every time I try to mount a romfs image sudo mount -t romfs mlsrc.img mp/ mount: unknown filesystem type 'romfs' I am running arch linux with kernel 3.4.7 ...
0
votes
1answer
747 views

How can I remove an uncessessary extended partition with only one member in gparted?

I've been changing this hard drive around, and have stumbled into this problem. I'm trying to get my hard drive back to just its original 4 partitions, but I can't seem to get rid of the "shell" of an ...
0
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1answer
61 views

Firefox deployment concept: Linux

Context: 30 stations, all clones --- public kiosks; using Firefox. I'd like to be able to use fabric to deploy firefox + addons + user scripts to the stations that do not have it, or, need an updated ...
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2answers
4k views

Exploring the Network and sharing files in XFCE/OpenBox/Thunar

As of recently I started using a debian-based distro called crunchbang which uses OpenBox as a window manager and thunar as file manager. I did setup Samba server correctly and can now share files ...
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2answers
2k views

Two OS in same computer, how to set boot priority for windows 7?

I have Centos and Win 7 installed in same PC. How Can I change setting in CentOS to show Windows 7 in top of the list in boot menu ?
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1answer
433 views

Fixing broken SSH on NAS server

I am very new to the Unix/Linux world, and at my workplace, I was trying to set up my user to be able to SSH into the NAS server (our NAS is made by netgear). I had never worked with this particular ...
5
votes
1answer
516 views

How to configure Linux to open files by extension?

The various Linux's desktops open files according to their mime type. This is a very nice feature but I also need to open them by extension (as with Windows). For instance, I want to open every ...
0
votes
2answers
9k views

Running WhatsApp in Fedora

Is there any way I can run WhatsApp on Fedora? There are Android emulators like BlueStackApps for Windows and Mac, but I haven't found one for Fedora or Ubuntu. Is there any such that will allow me ...
1
vote
1answer
853 views

What does / (forward slash) mean in cd?

I use the following commands to change directory and it generally works fine. [max@localhost max]$ cd / [max@localhost /]$ cd /home/max/ [max@localhost max]$ pwd /home/max But today, by mistake, I ...
3
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1answer
795 views

mcedit - select all text

How can I select all text in mcedit?
3
votes
1answer
3k views

Slackware Linux: Glib can't find libffi.so.6. Where is it trying to look?

I have libffi installed and it's in /usr/local/lib, yet the glib make process can't find it /home/mathmagi/src/glib-2.32.4/gio/.libs/lt-glib-compile-resources: error while loading shared libraries: ...
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0answers
208 views

Environment variable changed

At first my hostname was localhost.localdomain in CentOS 6.2 I installed ubuntu in separate partition after that my hostname was changed to this ###-###-###-###-####.####.example.com In ...
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1answer
86 views

Folder to put under revision control linux workstation

I have several Linux workstations, including servers on which I often make critical changes and would be happy to be able to roll back them in case I break something. I therefore consider versioning ...
0
votes
1answer
725 views

Error in .bash_profile

I am using CentOS 6.2. This is my ~/.bash_profile content: # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup ...
0
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1answer
323 views

archlinux boot messsages show random ascii characters

I'm new to Archlinux but I've studied some tutorials and read the install, getting started and beginners guides. I have installed a basic Arch Linux on a virtual box machine. The machine seems to ...
6
votes
1answer
5k views

The meaning of thermal throttle counters and package power limit notifications in Linux

Whenever I do some performance testing on my Linux-installed MacBook Pro, I often see the following messages in dmesg: Aug 8 09:29:31 infinity kernel: [79791.789404] CPU1: Package power limit ...
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vote
1answer
124 views

Hosts not recognized?

Basically, nobody can establish a connection to anything I host. The website, teamspeak, and game servers. I think it may have something to do with the hosts file or network configuration, but I have ...
0
votes
2answers
806 views

Repair Grub after install windows?

i got problem about my PC, my pc use dual OS, but after I install windows the grub cannot detect my BAcktrack,my Backtrack location in /dev/sdaa4, I try to repair but error : sudo su mkdir /media/bt ...
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0answers
125 views

Map RAID device to OS level device

I have a two RAIDs, named 'raid1' and 'raid2', that show up on my linux machine as /dev/sda and /dev/sdb. How can I tell which RAID maps to which device? I can do this with an Adaptec card by ...
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1answer
4k views

MySQL service will not start on Fedora 17

I've recently installed Fedora 17 on my laptop, and I have tried several times to start the MySQL (mysqld) service on it but it refuses to do so. It gives the following error: [root@blackbird2 ...
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4answers
4k views

how to ssh two computers behind NAT and Firewall, without third computer

I am trying to ssh into my Linux box at home. My home is a dorm-style environment - NAT and Firewall with personal laptop running Arch Linux. My work is corporate style Windows 7 - NAT and proxy ...
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1answer
107 views

How to open a port via password in linux server?

I have a Linux server and I want to connect to it with a remote computer, how can I put a password for more security please? I use netcat to connect to my server ! thanks a lot ...
1
vote
1answer
916 views

system clock is not set correctly on startup

i have strange problem with the system clock in my Linux system, TinyCore, kernel 2.6.38 . dmesg says the following: rtc_cmos 00:04: setting system clock to 2012-08-08 19:20:00 UTC ...