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issue92:q_r

Ceci est une ancienne révision du document !


QR

Q Can I extract an image from a PDF and save it as a jpg? A Yes, open the PDF in Gimp, and tell it what page the image is on. Then you can “save as.” Gimp may prompt you to “flatten the image,” so just do as it asks, then “save as.” Q Where are the 13.04 package repositories? A 13.04, and 13.10, had just nine months of support. The current supported releases are 12.04, 14.04 and 14.10. Q I want to install the latest unetbootin in Ubuntu 14.04. A (Thanks to nerdtron in the Ubuntu Forums) The latest one compatible with Ubuntu 14.04 is unetbootin 603. Here's a download link: http://unetbootin.en.uptodown.com/ubuntu/download/77793 Now go to the Downloads folder and double click the file. The software center should launch and after several seconds you should see the Unetbootin install button. Look at the details and it should say it is version 603.

Q Puis-je extraire une image à partir d'un fichier PDF et l'enregistrer comme un jpg?

R Oui, ouvrez le PDF dans Gimp, et dites-lu sur quelle page se trouve l'image. Ensuite, vous pouvez «enregistrer sous». Gimp peut vous inviter à «aplatir l'image», faire alors simplement ce qu'il demande, puis «Enregistrer sous».

Q Où sont les dépôts de paquets 13.04 ?

R 13.04 et 13.10, avaient seulement neuf mois de soutien. Les versions actuelles supportés sont 12.04, 14.04 et 14.10.

Q Je veux installer la dernière unetbootin dans Ubuntu 14.04.

R (Merci à nerdtron dans les forums Ubuntu) La dernière version compatible avec Ubuntu 14.04 est unetbootin 603. Voici un lien de téléchargement: http://unetbootin.en.uptodown.com/ubuntu/download/77793

Maintenant, allez dans le dossier Téléchargements et double cliquez sur le fichier. Le centre de logiciels devrait se lancer et après quelques secondes, vous devriez voir le bouton d'install d'Unetbootin. Regardez les détails et il devrait être dit que c'est une version 603.

Q Today I installed Ubuntu 14.04 LTS next to my Windows 7 Professional. The first thing I noticed was that my mouse, plugged into my only USB 2.0 port, was not working. It's a Razer Naga, which has coloured LED flashing when it is powered, and it was all dark. So I plugged it into the 3.0 port, and it worked right away. A (Thanks to Morgaes in the Ubuntu Forums) This is fixed in Ubuntu 14.10. Q How can I check on whether the process myproc is running? A Enter the following command: ps aux | grep myproc You will always get at least one line of output, so ignore the last line. Q What is the easiest way to find the IP address of a domain? A Use the host command, eg: host ubuntu.com Q What is the easiest way to get all my applications onto a new machine? A Everything you have installed or updated is in /var/cache/apt/archives – unless you have run apt-get clean. You could delete the old versions for which there has been an update, then copy your applications to your new computer and install each of the programs.

Q Aujourd'hui j'ai installé Ubuntu 14.04 LTS à côté de mon Windows 7 Professional. La première chose que j'ai remarqué, c'est que ma souris, branchée sur mon seul port USB 2.0, ne fonctionnait pas. C'est une Razer Naga, qui a une LED colorée qui clignote quand elle est allumée, et elle était toute noire. Donc je l'ai branchée dans le port 3.0, et cela a fonctionné tout de suite.

R (Merci à Morgaes dans les forums Ubuntu) Ceci est corrigé dans Ubuntu 14.10.

Q Comment puis-je vérifier si le processus myproc est lancé ?

R Entrez la commande suivante:

ps aux | grep myproc

Vous obtiendrez toujours au moins une ligne à l'écran, donc ignorez la dernière ligne.

Q Quelle est la meilleure façon de trouver l'adresse IP d'un domaine?

R Utilisez la commande host, par exemple:

host ubuntu.com

Q Quelle est la meilleure façon d'avoir toutes mes applications sur une nouvelle machine?

R Tout ce que vous avez installé ou mis à jour se trouve dans /var/cache/apt/archives; sauf si vous avez lancé apt-get clean.

Vous pouvez supprimer les anciennes versions pour lesquelles il y a eu une mise à jour, puis copiez vos applications sur votre nouvel ordinateur et installez chacun des programmes.

Top

Top questions at Askubuntu * Making Ubuntu Download Bootable from USB http://goo.gl/yqj3rD * What's wrong with using sudo? http://goo.gl/Im6YIk * How to “cat” or “less” a libreoffice writer .odt file? http://goo.gl/4wUMXs * Dividing an existing Ubuntu installation on two physical drives http://goo.gl/NBGPci * How to get the path to a file in your system http://goo.gl/C22KGq * how to back up with terminal http://goo.gl/zMxEkP * How do rootkits get installed on to a ubuntu server? http://goo.gl/IoMEvD * How do I type an 'ae' character? http://goo.gl/cS3Hb0 * Add column from one .csv to another .csv file http://goo.gl/GveRJF

===== TT ===== Tips and Techniques Lessons from a move As previously mentioned, my client moved to a new office recently. The biggest lesson from the move is that planning pays off. Several parts of the move did not go well. On moving day, there were carpenters, painters, movers, and two guys putting together a server rack, all tripping over each other. Oh, the server rack was our part, and it turned out that we should have allowed four weeks for delivery. The day before the move, my business partner spent five hours in bad-weather traffic, going and picking up the rack. Other than that, our part of the move went perfectly. I'm sure that either one of us, on our own, would have had about 80% of it covered, but together we aced it. It didn't matter that we spent moving-day assembling the rack, which arrived as 40 pieces of angle-iron, with more than enough nuts and bolts to put it together. We didn't have computers to install, and desks to put them on, until two days later. We had complete backup, so every computer survived the move. We knew that if we didn't have backup, it would lead to a catastrophe.

One of the areas the carpenters didn't have ready was for the receptionist, at the front door. We installed an old laptop, running Linux, with a webcam, so she can see what's happening at the front door from her Windows PC at her temporary location. X11vnc rocks. The first floor has three rooms for meetings with clients, and the boss wanted them to have cool technology. We went with wall-mounted Samsung smart TVs, with cables in the wall going to a hidden Zbox PC. The Zbox is tiny! Then we added wireless keyboard and mouse combos, so all the client sees is the TV, apparently operated from a disembodied keyboard and mouse. There are many configurations of Zbox; we went with the ID91 Plus, which has a fairly fast Core i3, 4 GB of memory, and 500 GB hard drive. The tiny Zbox sure works nicely. The Zbox comes with no OS, and when I booted from a Mint Live CD, it all worked. It has two gigabit Ethernet ports, so I tried installing pfSense, the world-class free firewall/router software. It worked great! You can also buy versions with no memory and no hard drive. Get the one with an i5, add 16 GB of memory and a big SSD, and you have a powerhouse. It's not particularly cheap, but hugely cool.

issue92/q_r.1425463165.txt.gz · Dernière modification : 2015/03/04 10:59 de frangi