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• pulseaudio: no microphone configuration

  - by mitsch

  Updated Ubuntu to precise from oneiric on a Dell Inspirion Mini 10 (with an Intel HDA-Soundcard). I can't remember having any issues with the microphone. I didn't need it - I tried ekiga the first time in precise. I couldn't hear any sound in the echo test of ekiga, so I switched to the "System Preferences" and looked for the microphone to boost it. Surprisingly, the microphone input was greyed out - I couldn't mute or unmute, i couldn't even move the volume-slider. On the other hand: I could change the microphone-setting on console with alsamixer, so don't worry about that… :) I just wanted to ask, how to get pulseaudio back to the known, comfortable behaviour. Some newbies won't know the trick to use alsamixer… My soundcard (output of lspci): 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02) Greets!

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• Paren-free PHP? [on hold]

  - by Ivan Curdinjakovic

  I stumbled upon the idea for paren-free ecmascript (https://brendaneich.com/2010/11/paren-free/), which is inspired by Go language. And it's simple, clean and cool - if you make braces required instead of recommended (and they are recommended everywhere anyway: http://www.php-fig.org/psr/psr-2/), then parenthesis are unneeded around control structure “heads”. It would work exactly the same in PHP. So, a piece of PHP code could look like this: if $someVar == 42 { doSomething(); } or: foreach $someArray as $key => $value { echo "$key: $value"; } It's a small, but nice step towards a nicer, cleaner syntax and removing unnecessary parts. The question is - would PHP community be willing to see the languange move in that direction? Would it be considered an improvement by majority, or are we too used to typing those parenthesis and unwilling to see any change in PHP syntax?

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• Error mpicc command not found [closed]

  - by skn

  I want to compile hdf5 but I find the following error: /hdf5/hdf5-1.6.9CC=/usr/local/openmpi/bin/mpicc ./configure /home/sknandi/Research/ Simulation/hdf5/parallel_fdf5 CC=/usr/local/openmpi/bin/mpicc: Command not found. The result of echo $PATH is /hdf5/hdf5-1.6.9echo $PATH /priv/myriad3/ayw/research/COALA/visit/bin:/usr/local/bin:/usr/bin:/bin:/pkg/linux/intel/composerxe-2011.3.174/composerxe-2011.3.174/bin/intel64:/pkg/linux/casa/x86_64:/usr/local/bin:/bin:/usr/bin:/usr/local/openmpi/bin:/pkg/linux/intel/composerxe-2011.3.174/composerxe-2011.3.174/mpirt/bin/intel64:/pkg/linux/SS12/solstudio12.2/bin:/usr/local/vanilla-pds/bin and result of which mpicc is /hdf5/hdf5-1.6.9which mpicc /usr/local/openmpi/bin/mpicc

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• How do you format arrays within parameters?

  - by joslinm

  I'm talking about something like this: echo $form->input('general_addresss', array( 'label' => 'Where will you go today?' 'format' => array('before', 'input', 'after', 'label', 'after', 'error') )); Do you start with one array parameter, then break a line? If it can't fit on a line, do you immediately break a line? After of which, do you do a set number of tabs over? What happens if an array within an array has lots of properties? Is there any particular guide you follow?

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• How to execute? [closed]

  - by Viswa

  Possible Duplicate: how to read the password from variable? I did the below code in my python script,but its not work. #! /usr/bin/python import os address = "rsync -avrz [email protected]:/opt/script/python/data/ /opt/script/python/data/" passwd ="my server password" os.system('%(address)s "echo %(passwd)s"' %locals()) it throws below error. If arg is a remote file/dir, prefix it with a colon (:). rsync error: syntax or usage error (code 1) at main.c(1236) [Receiver=3.0.7] If i run os.system('%(address)s' %locals()) means it work without any error but it ask password. I need that password should be read from my passwd variable. How to write python script to read server password from my variable.

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• Calling a parameterized javascript function from php [migrated]

  - by Ginger

  I need to call a javascript function from php, by passing a value in php variable. My code goes like this: echo '<tr class="trlight"><td onclick="callVehicle('.$qry_vehicleid.');"><label>Call Vehicle</label>&nbsp;</td></tr>'; And in javascript file I try to execute the following code: function callVehicle(vid) { alert('Call '+vid); document.getElementById("SearchResult").style.visibility="hidden"; } and an error test is not defined occurs. test is the value that I assigned to variable $qry_vehicleid. Can someone please point out what the mistake is?

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• Forwarding data between two interfaces

  - by user84471

  I installed Ubuntu server 12.04 after that I installed dhcp3-server and configured it like this: At isc-dhcp-server INTERFACES="eth0" And in dhcpd.conf # A slightly different configuration for an internal subnet. subnet 192.168.1.0 netmask 255.255.255.0 { range 192.168.1.5 192.168.1.100; option domain-name-servers 192.168.1.1; option domain-name "nazwa.local"; option routers 192.168.1.1; option broadcast-address 192.168.1.255; default-lease-time 600; max-lease-time 7200; } Also I have two eth interfaces: # second netowrk interface auto eth0 iface eth0 inet static address 192.168.1.1 netmask 255.255.255.0 # The primary network interface auto eth1 iface eth1 inet dhcp When I plug computer to eth0 I get propertly ip adress but I can't visit any sites. I do even this: echo 1 > /proc/sys/net/ipv4/ip_forward

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• How to make grub stop appearing every time I boot?

  - by Justin Riddiough

  I'm using Ubuntu 12.04 and grub selections appear each time I boot. This happens on both of my computers. I have tried editing the /etc/defaults/grub to use default, to use the 0 entry, and ran the update on it. But nothing seems to solve the problem. (showing uncommented lines) $ sudo nano /etc/default/grub GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" $ sudo update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.2.0-25-generic-pae Found initrd image: /boot/initrd.img-3.2.0-25-generic-pae Found linux image: /boot/vmlinuz-3.2.0-24-generic-pae Found initrd image: /boot/initrd.img-3.2.0-24-generic-pae Found memtest86+ image: /boot/memtest86+.bin No volume groups found done

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• Make command error installing Postfix

  - by Newben

  I am installing Postfix and following a tutorial, there is a command that uses 'make' but I have an error message. More precisely : make makefiles CCARGS='-DDEF_CONFIG_DIR=\"/usr/local/postfix/etc\"' and the error message : make -f Makefile.in MAKELEVEL= Makefiles (echo "# Do not edit -- this file documents how Postfix was built for your machine."; /bin/sh makedefs) makedefs.tmp ATTENTION: ATTENTION: Unknown system type: Linux 3.2.0-23-generic-pae ATTENTION: make: * [Makefiles] Error 1 make: * [makefiles] Error 2 I installed 'build-essantial' package but I still have error message. Does anyone has an idea ?

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• How to work around the home directory changing to /root when using sudo?

  - by Nathanel Titane

  Hello everybody! With Natty coming out soon, I've been at work updating my deployment and self-config script to make my desktop on 11.04 run and look the way I want it to. One bummer is that dbus seems to have changed and does not permit, in the same manner Lucid and Maverick did, the authentication of the current user by terminal call using grep and cat. Ideally, to run the script, I would sudo -s and then launch it as # chmod +x install && ./install Instead of returning my user name.. it now returns root and applies changes to the root profile and aborts whenever paths do not correspond. Here is my script header: #!/bin/bash ON_USER=$(echo ~ | awk -F'/' '{ print $1 $2 $3 }' | sed 's/home//g') export $(grep -v "^#" ~/.dbus/session-bus/`cat /var/lib/dbus/machine-id`-0) if sudo -u $ON_USER test -z "$DBUS_SESSION_BUS_ADDRESS" ; then eval `sudo -u $ON_USER dbus-launch --sh-syntax --exit-with-session` fi RELEASE=$(lsb_release -cs) How could I make it return the actual user now that natty is coming? Thanks for the help

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• What does /dev/null mean in a shell script?

  - by rishiag

  I've started learning bash scripting by using this guide: http://www.tldp.org/LDP/abs/abs-guide.pdf However I got stuck at the first script: cd /var/log cat /dev/null > messages cat /dev/null > wtmp echo "Log files cleaned up." What do lines 2 and 3 do in Ubuntu (I understand cat)? Is it only for other Linux distributions? After running this script as root, the output I get is Log files cleaned up. But /var/log still contains all the files.

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• All command need privilage

  - by Am1rr3zA

  I try to install Hping3 in my ubuntu 8.04 but after installation when I want to Hping3 I got this error: Command 'hping3' is available in '/usr/sbin/hping3' The command could not be located because '/usr/sbin' is not included in the PATH environment variable. This is most likely caused by the lack of administrative priviledges associated with your user account. also when I try to run ifconfig I get this: Command 'ifconfig' is available in '/sbin/ifconfig' The command could not be located because '/sbin' is not included in the PATH environment variable. This is most likely caused by the lack of administrative priviledges associated with your user account. first it needs to run sudo su and then run the command. is it normal? or I miss something? when I run echo $PATH I get: /usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/amirreza/simulator/ns-allinone-2.33/bin:/home/amirreza/simulator/ns-allinone-2.33/tcl8.4.18/unix:/home/amirreza/simulator/ns-allinone-2.33/tk8.4.18/unix:/home/amirreza/simulator/ns-allinone-2.33/ns-2.33/:/home/amirreza/simulator/ns-allinone-2.33/nam-1.14/

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• Le Plan B pour Nokia était une plaisanterie mais les questions sur l'avenir de MeeGo, Qt et Symbian demeurent

  Le Plan B pour Nokia était une plaisanterie Mais les questions sur MeeGo, Qt et Symbian demeurent Mise à jour du 17/02/11 Comme on pouvait s'en douter avec les dernières proposition du groupe (qui conseillait à Nokia, par exemple, de se lancer dans la fabrication de pneus), « Nokia Plan B » était en fait un « Hoax ». Une plaisanterie (lire ci-avant) qui a eu néanmoins un énorme écho et qui montre bien les préoccupations des développeurs (notamment Qt) et de certains actionnaires face au virage qu'a pris Stephen Elop, le nouveau PDG de Nokia, en s'associant à Microsoft. On n'en sait pas beaucoup plus sur l'identité de l'auteur d...

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• wordpress get content main menu

  - by eca_arpit

  I added a menu page named "Home" on wp-admin. It was added successfully. when i click this home menu then it display nothing.Now i want to display content of a page suppose Page_id=15 on right side(which is empty after clicking home). 15 number page has php codes and uses a template also...is it possible to display contents..i wrote following code...if any confusion i can explain more..plz help me out.. i wrote this in a plugin. add_action('admin_menu', 'Home'); function Home() { add_menu_page('My Plugin Options', 'Home', 'manage_options', 'my-unique-identifier', 'content'); } function content() { if (!current_user_can('manage_options')) { wp_die( __('You do not have sufficient permissions to access this page.') ); } $page_id = 15; $header_content = get_page( $page_id ); echo apply_filters('the_content', $header_content-post_content); }

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• What's Your Method of not forgetting the end brackets, parentheses

  - by JMC Creative

  disclaimer: for simplicity sake, brackets will refer to brackets, braces, quotes, and parentheses in the couse of this question. Carry on. When writing code, I usually type the beginning and end element first, and then go back and type the inner stuff. This gets to be a lot of backspacing, especially when doing something with many nested elements like: jQuery(function($){$('#element[input="file"]').hover(function(){$(this).fadeOut();})); Is there a more efficient way of remembering how many brackets you've got open ? Or a second example with quotes: <?php echo '<input value="'.$_POST['name'].'" />"; ?>

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• SQL binary value to PHP variable leading zeros

  - by Agony

  Using sql query to pull data from a mssql database results in a value that still has leading zeros. The data in database is stored as binary(13) - so it will pull all 13 digits. However the value is a text, so any leading zeros will generally show up as '?' in a form on the site - and in return will update wrong data to the database later. So what i need is to only select/display the text itself, not all 13 bytes. using: SELECT CONVERT(char,uilock_pw) AS uipwd FROM tbl_UserAccount or SELECT uilock_pw FROM tbl_UserAccount still adds the leading zeros to the char array. Example in database: 0x71776531323300000000000000 Would show up as: qwe123??????? But should be: qwe123 Im not even sure what character those ? represent. Using Echo results in a normal qwe123 - but not in a form.

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• mysql database cannot connect with cpanel [closed]

  - by Rafee

  And this question was asked on http://stackoverflow.com/questions/8182119/mysql-database-cannot-connect-with-cpanel <?php $con1 = mysql_connect("mywebsiteip","mysql_username","mysql_user_password"); if(!$con1) { die ("Could not connect " . mysql_error()); } else { echo "Good connection"; } mysql_close($con1); ?> When i run it, it cannot connect to mysql database over cpanel. and i even tried up $con1 = mysql_connect("mywebsiteip:portnumber","mysql_username","mysql_user_password"); Can any let me know, which one is good way.

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• enable iptables firewall on linux

  - by user13278061

   Here is a very basic set of instruction to setup a simple iptables firewall configuration on linux (redhat) Enable firewall log as root thenenter the following command, it launch a text gui #> setup first screen: Choose firewall configuration second screen: choose "Enabled" then "Customize" third screen: select you interface in "Trusted Devices", select "Allow Incoming" for "SSH" "Telnet" "FTP" (add eventually other ports, then press "OK" (2 times, then "Quit") At that point the firewall is enabled. You can start/stop/monitor using service iptables start/stop/status Change timeout to changed the tcp established connection timeout #> echo 120 >    /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established Monitor connection in iptables tables for example if you want to track a connection establish from a host  152.68.65.207 #> cat /proc/net/ip_conntrack |grep 152.68.65.207

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• Are "backwards" terminators for if and case unique to shell scripting?

  - by tomjakubowski

  In bash at least, if and case blocks are closed like this: if some-expr then echo "hello world" fi case $some-var in [1-5]) do-a-thing ;; *) do-another-thing esac as opposed to the more typical close of end or endif/endcase. As far as I know, this rather funny convention is unique to shell scripting and I have never seen such an odd block terminator anywhere else. Sometimes things like this have an origin in another language (like Ruby's elsif coming from Perl), or a strange justification. Does this feature of shell scripting have a story behind it? Is it found in other languages?

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• How to access functions in extended classes efficiently?

  - by nischayn22

  In PHP I have classes as below class Animal { //some vars public function printname(){ echo $this->name; } } class AnimalMySql extends Animal { static public function getTableFields(){ return array(); } } class AnimalPostgreSql extends Animal { static public function getTableFields(){ return array(); } } Now I have an object $lion = new Animal(); and I want to do if($store == mysql) //getTableFields from class AnimalMySql else //getTableFields form class AnimalPostgreSql I am new to OOP and not sure what is the best way to call the method from the specific class P.S. Please leave a note with the answer to explain the efficiency of the approach

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• Cannot get grub menu to timeout (or go away)

  - by Eric

  I am running Ubuntu 12.04. I cannot for the life of me get the grub menu (with options) to go away. I would like it to auto-boot into the first option. I've edited /etc/default/grub so that it looks like the following: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" After this, I ran sudo update-grub. Then I realized that I had grub 2, so I ran sudo update-grub2 (both make it look like they create the grub.cfg file successfully. I restart my computer and it goes back to the grub menu and just sits there until I make a choice. This is not desirable if the power goes out... :-) I also tried reinstalling grub using sudo grub-install /dev/sda - also unsuccessful

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• After upgrade my webcam mic records fast, high pitched, and squeaky only in Skype (maybe Sound Recorder problem too)

  - by Dennis

  After an upgrade to 11.10 which probably also updated Skype to 2.2.35 (not sure because I never checked the version before) the sound that comes back from an echo test is very high pitched and squeaky. I'm not sure if when in a call if the other person can't hear or just doesn't know what they are hearing. I am using a USB Logitech C250 Audacity records fine, gmail video chat works fine, but if I start sound recorder I get a "Could not negotiate format", followed by "Could not get/set settings from/on resource". I don't know if this is a Skype problem or a wider Pulse problem. My only real needs are the gmail and Audacity, though I have a couple of contacts that I can only Skype with.

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• jQuery 1.8 permettra de construire son propre build du framework JavaScript, sa déclinaison pour UI mobile également

  JQuery 1.8 permettra de construire son propre build Du framework JavaScript, sa déclinaison pour UI mobile également Nous l'avouons sans détour, c'est avec un peu de retard que nous nous faisons l'écho de la sortie de la pré-version de JQuery 1.8 et de la version officielle de JQuery Mobile 1.1.0. Mais comme dit le dicton, mieux vaut tard que jamais. Principale nouveauté de la pré-version 1.8 du Framework JavaScript, la possibilité de construire son propre build pour ajouter ou ne garder que les modules voulus (ajax, css, dimensions, effects, offset). Du côté de la version pour navigateurs mobiles du framework - qui permet de réaliser des UI tactiles (fortement inspirées d'...

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• Les ventes d'eBooks ont augmenté de 115% en un an, les supports papier sont-ils obsolètes ?

  Les ventes d'eBooks ont augmenté de 115% en un an, les supports papier sont-ils obsolètes ? Mise à jour du 18.03.2011 par Katleen L'usage de livres numériques serait en pleine croissance. Selon l'AAP (Association of American Publishers), les ventes nettes d'eBooks sont passées de 32.4 millions de dollars (janvier 2010) à 69.9 millions de dollars au début de l'année 2011. Cela représente une augmentation de 115% sur un an. Autrement dit, ce marché est en bonne santé, et fait écho au succès rencontré par le Kindle et les autres appareils du même type. L'iPad favorise également le commerce de ce type de contenus. En parallèle, les livres et les magazines continuent d'enregistrer des béné...

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• How can I redirect the contents of a file to the pastebinit command? [duplicate]

  - by Tim

  This question already has an answer here: How to submit a file to paste.ubuntu.com without graphical interface? 2 answers Whenever I was to store something to show someone here, I run command-with-output | pastebinit. That returns the link to the paste online. For example: echo timtjtim | pastebinit gave me the link paste.ubuntu.com/8010000 Which I can share. How can I do this with a file - for example a log file. Surely I don't have to open - > copy all - > open paste.ubuntu.com -> paste it?

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