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issue76:q_et_r

Ceci est une ancienne révision du document !


Q In some programs there are buttons I can't press at the bottom of the window, because they are below the bottom of the screen, and I can't move the window up any further than the top of the screen. A Hold down the Alt key and you can move the window up, then adjust the height of the window and move it back down. Q I have used this command before, but today it gave this result: sudo: ./waltop.sh: command not found A Use this command: locate waltop.sh Then cd to its location.

Q Dans certains programmes, il y a des boutons en bas de la fenêtre sur lesquels je ne peux pas appuyer parce qu'ils se trouvent en dessous du bas de l'écran et je ne peux pas déplacer la fenêtre plus haut que le haut de l'écran.

R Appuyez sur la touche Alt et gardez-la enfoncée, ce qui vous permettra de déplacer la fenêtre vers le haut. Puis ajustez la hauteur de la fenêtre et la déplacez à nouveau vers le bas.

Q J'ai déjà utilisé cette commande, mais aujourd'hui le résultat était : sudo: ./waltop.sh: command not found

R Utilisez cette commande :

locate waltop.sh

Puis cd jusqu'à son emplacement.

Q I'm getting low disk space messages and understand there is a way to clean the disk up. A (Thanks to mojo706, oldfred and JoseeAntonioR in the Ubuntu Forums) Follow this tutorial: https://sites.google.com/site/easylinuxtipsproject/clean Also run these commands: sudo update-grub sudo apt-get autoremove And read this Community Help lesson: https://help.ubuntu.com/community/RecoverLostDiskSpace

Q Je reçois des messages « low disk space » et je pense savoir qu'il y a une façon de nettoyer le disque.

R (Remerciements à mojo706, oldfred et JoseeAntonioR sur les Forums Ubuntu) Suivez ce tutoriel :

https://sites.google.com/site/easylinuxtipsproject/clean

Exécutez ces commandes aussi :

sudo update-grub

sudo apt-get autoremove

Et lisez cette « Community Help lesson » (leçon d'aide communautaire) : https://help.ubuntu.com/community/RecoverLostDiskSpace

Q How can I Hibernate in Xubuntu 12.04 LTS?

A (Thanks to 2F4U in the Ubuntu Forums) Hibernation has been deactivated in Ubuntu 12.04. If you want to reactivate, follow the official guide: https://help.ubuntu.com/12.04/ubuntu-help/power-hibernate.html

Q I have installed Linux Mint Cinnamon 15; how can I get the software that I have paid for in Ubuntu Software Center, so I can install it on Linux Mint?

A Install VirtualBox with the Extension Pack, install Ubuntu 12.04 in VirtualBox, download the programs you have paid for, copy the .deb files to a flash drive, install in Mint. Watch out for dependencies: someprogram.deb might require thislib.deb, thatlib.deb, awholebunchoflibs.deb.

Q Can anyone recommend a screen-capture and video tutorial creation tool?

A For screen capture, “recordmydesktop” is the most popular program. For video editing, I like Cinelerra, but it has a significant learning curve, and may be much more than what you need. “Cinelerra for Grandma” is the best site for learning about it.

Q I am running an FTP server and need to figure out how to restrict users to their directories.

A (Thanks to LHammonds) See: http://www.hammondslegacy.com/forum/viewtopic.php?f=40&t=197

Q I'm looking for a dedicated serial port terminal application.

A Minicom is a clone of Telix, the popular MS-DOS terminal program. Putty is another possibility.

Q Then, when I run the terminal program and choose a port, I'm told “Permission denied”.

A ls -l /dev/ttyUSB0 shows: crw-rw—T 1 root dialout 188, 0 Feb 12 12:01 /dev/ttyUSB0

So I run this command:

sudo adduser <username> dialout

and reboot.

Q I tried to download source code for FCM's Python series, but the web site is about healthcare, not programming.

A Greg's site is a .net, not a .com.

Q I have a Dell Latitude D610 laptop running Xubuntu 12.04.2 LTS Precise Pangolin. I am having some trouble figuring out how to manually speed up my fan.

A (Thanks to Toz in the Ubuntu Forums) Have a look at this web site: http://www.cyberciti.biz/faq/controlling-dell-fan-speeds-temperature-on-ubuntu-debian-linux/

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* Find directories with lots of files in http://goo.gl/ygaQSt

* How can I remove python 2.7 after installing python 3.3? http://goo.gl/ot4fow

* How can I tell if all the hardware in my system has correctly installed drivers? http://goo.gl/l68oDc

* How to Install and Configure Wine http://goo.gl/i1lDIz

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* I downloaded an EPUB file, how can I get it from Ubuntu to my IPad? http://goo.gl/NNxpoj

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* Install 32-bit version of Oracle JDK 7 on a 64-bit Ubuntu? http://goo.gl/rQTGgq

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* how can use lpc command with cups 1.4.3 in ubuntu 10.04? http://goo.gl/kgl4rR

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* What programming languages should I learn to become an Ubuntu developer? http://goo.gl/u7ymM1

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* Ambiguity using “ls -l” and “file” commands on a file http://goo.gl/EuY9gl

* Prevent PC from shutting down on Power button http://goo.gl/fdCTDh

* How do I change the default logon screen in 12.04 http://goo.gl/3LC2BW

* 12.04 and Asus 1015E problems http://goo.gl/DlTi0e

Tips and Techniques Lightweight?

I resurrected a nine-year-old computer this month. The old Compaq has an Athlon 3000+ CPU and 768 MB of memory, but the power supply was toast. When the motherboard of a friend's computer got fried, I was able to transplant his power supply into the Compaq, converting two dead computers into one which worked.

I have fooled around with Xubuntu on my main desktop PC, so I figured it was time to have a look at the latest Lubuntu, 32-bit 13.04. Once I installed Gedit and Nemo, I found it usable. It got high marks for its low memory usage and good overall performance. There were a couple of problems, which I later ascribed to the hardware, but it was enough to move on. I couldn't get it to play Youtube videos because that CPU is no longer supported by the Adobe flash player!

What should I try next? Googling “lightweight linux” turned up Crunchbang, which I have heard a lot about. I installed it, but its kernel was ancient, and did not support my USB wireless adapter. Ubuntu 11.10 supported it!

Next on my list: Linux Mint 15, 32-bit with Mate. Still no Youtube, but most everything worked. The “videos” application could play downloaded .flv files, although the CPU was too slow to handle 720 by 480 H.264 without dropping frames, sometimes lots of frames. I installed Conky so I could see CPU and hard drive temperatures, CPU and memory usage, etc. Just moving a window pushed the CPU. It used about twice as much memory as Lubuntu (or Crunchbang), but I could open a 50-page PDF and a couple of tabs in Chrome, and still stay below 400 MB of memory.

Banshee crashed; I assume it uses the SSE2 instructions (like Adobe Flash Player) which are not in that processor. “Videos” could play my music, and even a DVD. (“Videos” seems to be the Totem player.) The wireless connection also dropped a couple of times, but not so often as to be intrusive. Was it all sweetness and light? Not by a long shot. In addition to the minor problems, the system spontaneously rebooted several times, in ways I was not able to reproduce. A friend has no computer, and I was thinking she could use this one instead of going to the library when she wants to use email. It's just not solid enough to make a neophyte comfortable; I would spend too much time providing phone support.

Next was using the old computer as a testbed to fool around with Arch Linux. While I got a working command-line system running, everything I tried to make Startx work failed. It produced a screen of output and announced that X had closed normally. Brrr.

Only one more option, the one I skipped over initially: Xubuntu. It also had problems, but I finally realized that all the problems happened in the first five minutes after pushing the power button. OK, it's a “cold joint” in some connector, which works fine once it has warmed up. It might even be the CPU socket, but I'm not about to remove the CPU cooler, re-seat the CPU, and re-install the CPU cooler.

Xubuntu works just great, and appears to use a bit less memory than Lubuntu. So now I have an old computer which works great if I give it five minutes to warm up, but it can't handle Youtube. Not my first choice of computers, but it's an OK backup.

issue76/q_et_r.1392031279.txt.gz · Dernière modification : 2014/02/10 12:21 de auntiee