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• How to find the list of all available packages along with the lastest version number available in the repositories?

  - by Avinash Raj

  I want to list all the packages(installed or not installed) along with the latest version number available in the repositories. For example: The output of apt-cache policy chromium-browser shows like below $ apt-cache policy chromium-browser chromium-browser: Installed: (none) Candidate: 34.0.1847.116-0ubuntu2 Version table: 34.0.1847.116-0ubuntu2 0 500 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu/ trusty/universe amd64 Packages So the latest version of chromium-browser package available in the repository is 34.0.1847.116-0ubuntu2. Like that, i want to list the version number along with the package names that are available in repositories. And all i want to do this through command-line. I want the output to be like this, chromium-browser 34.0.1847.116-0ubuntu2 xxxxxxxxxxxxxx yyyyyyyyyyy ............ ............

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• Gnome-Screenshot error in Ubuntu GNOME 13.10

  - by Lucas Zanella

  I recently installed Ubuntu GNOME 13.10 (it came with GNOME 3.8, but I replaced by GNOME 3.10) and after a few problems, the only one I couldn't solve was the screenshot problem. When I press the PrtSc key, nothing happens. No sound, no nothing. When I execute it via Terminal by writing "Gnome-Screenshot", it does work and saves in my Pictures folder. I have already tried to re-install the program, but still didn't work. I also tried to create a shortcut with this command line, but still nothing happend. I tried to replace the PrtSc key by another one, just for make sure the problem wasn't in the key, and it still failed. Can anyone help me?

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• alias of nodejs as node on 14.04

  - by Koka

  i installed nodejs with apt-get on 14.04 When i do nodejs -v v0.10.25 and when i do node -v node : command not found. So i want to make alias of nodejs as node So i inserted a line in ~/.bashrc alias node=nodejs Now i can access the nodejs with node on terminal. But in my project, i use grunt which fires nodemon via gruntfile.js. Now nodemon tries to run node instead of nodejs Now again i get the same problem node : command not found. Means alias was not made for non-interactive shell non-login shell. Where should i make the alias for this specific purpose and get my problem solved?

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• Why some user functions don't get recognised by bash?

  - by strapakowsky

  I can define a function like: myfunction () { ls -R "$1" ; } And then myfunction . just works. But if I do echo "myfunction ." | sh echo "myfunction ." | bash the messages are: sh: myfunction: not found bash: line 1: myfunction: command not found Why? And how can I call a function that comes from a string if not by piping it to sh or bash? I know there is this command source, but I am confused of when I should use source and when sh or bash. Also, I cannot pipe through source. To add to confusion, there is this command . that seems to have nothing to do with the "." that means "current directory".

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• What terminal emulators are available for heavy terminal users?

  - by Noah Goodrich

  I spend a lot of time at the command-line during the workday and at home too since I run Ubuntu exclusively. I've been using the default gnome terminal but I've reached a point where I'd really like to get my terminal tricked out so that my common tasks are as easy as possible. Specifically, I find that I spend of lot of time browsing code in the terminal and working in config files. On my wish list would be: Ability to have multiple screens, tabs, windows (I don't have a preference at this point) that I can easily switch between. Color coding for everything Easy to modify the aesthetics of the terminal (is it vain to want my terminal to look nice?) such as transparency, borders, etc.

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• Convert Line breaks to html break for all field getters in Symfony project

  - by Ben

  I am working on a Symfony project and I currently have this: <?php echo preg_replace('/\n/','<br />', $review->getComments()); ?> and would very much like to be able to make all getters add html line breaks so i don't have to pepper my code with preg_replace. the $object-getFieldname methods are work automatically so I am looking to extend this somewhere to globally add a new method. What is the best approach here?

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• TextFlow creates paragraph elements instead of line breaks

  - by user301144

  Is there some way to override Flex 4's textFlow keypress event which when editing content in a textFlow breaks the elements in to multiple paragraph elements instead of insterting a breakElement when you press the enter key?

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• Visual Studio 2008 Automatic line breaks in comments

  - by Pete Michaud

  When I write a comment, it's often a paragraph or a few lines that explains clearly what a bit of code is doing and why it's doing that. What I'd like is if I could start a comment, and have the editor automatically insert a line break and continue the comment to the nest line when I reach, say, 80 characters long. So I'd type: // Lorem ipsum dolor sit amet, consectetur adipiscing elit. < here the editor breaks automatically and continues onto the next line: // Etiam congue quam eget leo dignissim tincidunt.

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• How to protect Ubuntu from fork bomb

  - by dblang

  I heard someone talking about a fork bomb, I did some research and found some dreadful information about some strange looking characters people can have you type at the command line and as a result do bad things on the computer. I certainly would not issue commands I do not understand but one never knows what can happen. I heard that some OS allows the administrator to place some limit on user processes to mitigate the effects of fork bombs, is this protection in Ubuntu by default or would a person with sudo privilege have to set this? If so, how?

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• Can't Enter Password in Recovery Mode

  - by Mike Lentini

  When I go into recovery mode to get to the command line, I enter "telinit 3" to drop out of root. This works on my desktop, but on my laptop it asks for my username and password, then I hit enter and the first letter of my password appears and it doesn't log me in. It then proceeds to ask me for my username and password again, and the issue continues. Am I doing something wrong? Is this a known issue with a solution? EDIT: Worked around this by going into /etc/default/grub and setting it to boot in text mode. Still would like a solution for this though.

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• Unable to run java file from command like Ubuntu

  - by KodeSeeker

  I'm a newbie to Ubuntu and Im looking to run Java code from the command line. Ive checked that path as well. The interesting thing is the code compiles but fails to run ie. user@ubuntu:~/py-scripts$ javac Main.java' works well. but when I do . `user@ubuntu:~/py-scripts$ java Main I get the following error Exception in thread "main" java.lang.UnsupportedClassVersionError: Main : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:634) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) Could not find the main class: Main. Program will exit.'

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• Ubuntu 12.04 LTS can't add Cheese widget

  - by Burke Hodgson

  Command-line 12.04 Cheese (cheese:4144): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel Is there a fix so that Cheese will work in Ubuntu 12.04? The program comes up but the webcam area is black. I am running Unity 2D on a T42 Thinkpad. All programs similar to Cheese recognize my webcam as does Skype, but I really like Cheese and the error message may be ominous for other software failures.

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• Conecting bash script with a txt file

  - by cathy

  I have a txt file with 100+ lines called page1.txt; odd lines are urls and even lines are url names. I have a bash file already created that checks urls for completion. Except right now, the process is really manual because I have to modify the bash every time I need to check a url. So I need to connect the bash to the txt using the variable url. $url should get all the odd lines from page1.txt and check if the link is complete or not. Also, how would I write a variable called name that derives from the url the 7 digits? bash file manually: url=http://www.-------------/-/8200233/1/ name=8200233 lynx -dump $url > $name.txt I would prefer if the bash file could add "Complete/In-Complete " at the beginning of every even line in the page1.txt file but a new text file could be also created to keep track of the Completes/In-completes.

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• How to use a zenity progress bar with cclive

  - by Winael

  I tried to use a zenity progress bar with cclive. I'm writting a script to download web videos files and I wanna see the progression of the download. But when I try something like $cclive <url> 2>&1 | zenity --progress But when I execute the command line but it not seems to work. Any idea of how I can do that ? BR, [Edit] cclive have this kind of output : cclive http://www.youtube.com/watch?v=youtubevideo Checking ... .......... ..........done. youtubevideo.flv 2.5M 75.8K/s 00:09:29 5% So I need to send the last part to sdout but I dont know how. Else and about pulsate, we can't see th progression with this option, and I really need it... So I will not using pulsate for this script.

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• Where do lucid-updates come from?

  - by timbooo

  Considering the following command: # apt-get --simulate --show-upgraded upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: libimobiledevice0 libpam-ck-connector libparted0debian1 Inst libimobiledevice0 [0.9.7-1ubuntu1] (0.9.7-1ubuntu1.2 Ubuntu:10.04/lucid-updates) Inst libpam-ck-connector [0.4.1-3ubuntu1] (0.4.1-3ubuntu2 Ubuntu:10.04/lucid-updates) Inst libparted0debian1 [2.2-5ubuntu5.1] (2.2-5ubuntu5.2 Ubuntu:10.04/lucid-updates) [...] I can read an Inst line as the following: Inst <package> [<oldversion>] (<newversion> Ubuntu:10.04/lucid-updates) Can someone tell me where the Ubuntu:10.04/lucid-updates comes from? - Considering an own repository, how is this configurable?

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• Terminal flashing between current and previous screen

  - by cjordan1

  I just upgraded from Ubuntu 12.04 to 14.04. After upgrading the terminal will sometimes, but not always, flash between the current screen and the previous screen. Here are some examples: The output of an 'ls' command will flash on and off the screen. But when I press enter to start a new line, sometimes--but not always--the output of ls will stop flashing and instead the newline will begin flashing. Sometimes vim will start flashing between the current place and a previous place, such as right after a search. This also happens when I opened just sh within a bash terminal. (I was hoping the issue was just with my .bashrc, though I haven't changed it in months and didn't have any issues in 12.04.) This is incredibly annoying, and has made the terminal essentially unusable.Unfortunately, google-ing for a half hour hasn't shown anyone running into similar problems, either on 14.04, other versions of ubuntu,or other versions of linux.

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• Convert Line breaks to html break for all field getters

  - by Ben

  I currently have this: <?php echo preg_replace('/\n/','<br />', $review->getComments()); ?> and would very much like to be able to make all getters add html line breaks so i don't have to pepper my code with preg_replace. What is the best approach here?

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• How to make in CLI check for updates to be happening every 4 weeks and install them automatically without going to Software sources?

  - by Kangarooo

  I have a set of custom commands I run on my computers after I install them. How do I make Ubuntu check for updates every 4 weeks and install them automatically on check? I would need this done via command line so I can set it up for usual users when I set up their computers. The first command will make the update manager check for updates every 2 weeks because they not always come so much and to save the bandwidth of the Ubuntu servers. I also need to set it so that users don't need to click to install updates since it's tiring every time I help a friend set up a computer.

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• Trouble installing downloaded program

  - by Hamlette

  I purchased and downloaded Celtx and I'm having trouble installing it (in Ubuntu 13.04). I'm a Linux newbie (literally had it for four days) so please be kind and don't assume much experience with the command line, I'm still learning. The folder with all related files/packages etc. is under "Downloads" and I have tried several commands to try and install but I'm just not doing it right and would appreciate help with exactly what command(s) to use. Sudo apt-get install celtx did not work. I'm assuming I'm missing a step somewhere.

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• Commands to run when Connecting HDMI

  - by yurividal

  Everytime I connect my pc to my tv using my HDMI cable (to watch my movies), I have to manually go to: 1- Monitors, to select "mirror" screen to HDMI 2- Sound, to select the HDMI as default sound output 3- Screen Off an Lock, to avoid screen locking while watching a video. Is there a way I can automate this? Or at least write a script with commands that will do this. (I could manually run a script every time I connect my HDMI, and then run annother one to undo the changes later) How can I do these actions from a Command Line?

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• Quick path jumping

  - by Sebastian P.

  I was just at a lecture, where I noticed the lecturer using a command (probably aliased) to jump to a specific folder. Example: ~/code$ j sciproj ~/projects/sciproj2011/$ This looked quite slick, so I started wondering: Is this a standard utility, and if so, what is the name? I have two theories as to how it works: It can both create, delete and jump to aliases directly from the command-line in the style of the example, without having to set up aliases in a configuration file or script or whatnot manually. It searches the home directory for a folder matching the name and jumps to it. The second option seems a bit slow, however, so the first would be preferred.

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• When writing a form submit to a file, strip line breaks and commas

  - by bccarlso

  I have a form with a textarea in it. I log the results to a text file on the server, but I would like to strip out any line breaks a user would put in the textarea, as well as any commas that would interfere with importing the comma-delimited log text file into Excel or something for later use. I think this has to do with regex, but I'm no expert and could use some help. Or maybe there is an easy PHP function that will do it?

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• my layout breaks in IE7 and javascript page reloads make the screen blink

  - by chibineku

  My layout breaks if I change the window size in IE7/AOL, so I added a simple javascript function that fires on window.onresize, but no matter how I change the location I get problems. It was suggested I post a link and here it is: link text I already use PHP to detect browser and include an IE7-only inline stylesheet (and for mobile browsers), and my page looks nearly identical to the way it does in FF, Opera, Chrome, Safari and IE8, but when I change the window size, some things go wonky, and come back into line if you refresh. Any advice is welcome :)

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• Google Chrome Printing Page Breaks

  - by Mike Valstar

  I'm trying to get google chrome to do page breaks. I've been told via a bunch of websites that page-break-after: always; is valid in chrome but I can not seem to get it to work even with a very simple example. is there any way to force a page break when printing in chrome?

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• Weird execution of ruby/git executables in Windows [migrated]

  - by Frexuz

  Something strange has happened. I can't run some command line executables in Windows anymore. Steps: Open cmd Run an executable, such as ruby -v or git -h When I do that, a new command prompt opens, running that command (I think, it's too fast to see), and instantly closes again. I've managed to print screen the new command prompt, and it shows that it's running inside this path: C:\Documents and Settings\Administrator\Local Settings\Temp\3582-490 Inside this folder, is the executable I'm tring to run. If I run ruby, then ruby.exe is in there. If I run git, then git.exe is in there. And it's always emptying the folder in between, so there is always just one .exe file

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