Ceci est une ancienne révision du document !
Q I messed up my ~/.bashrc file, how do I get a new standard one?
A (Thanks to steeldriver in the Ubuntu Forums) You can copy it from the /etc/skel/ directory.
Q Can I use one of the recent Nvidia cards with Ubuntu?
A Yes, see this thread: http://ubuntuforums.org/showthread.php?t=2263316 (Thanks to jempa333 in the Ubuntu Forums).
Q I use the USB serial port to connect to routers, but every time it reboots I have to change permission for /dev/ttyUSB0 and /dev/ttyS0. How can I change this permanently so it has chmod 777 on reboot?
A (Thanks to SeijiSensei in the Ubuntu Forums) Add the command to the file /etc/rc.local, a script that runs after everything else that starts at boot. rc.local runs with root privileges, so you don't need sudo, just:
chmod 777 /dev/ttyS0
chmod 777 /dev/tty/USB0
Q Netflix used to work perfectly in Chrome, but I haven't been able to get it to play movies for about the past month. When I go to the Netflix website, it loads normally – I can browse through programs etc – but if I attempt to play any video, I just see a still from the video (without the spinning red circle that shows it's loading) and, after a minute, a black screen appears that says “Whoops–something went wrong” with error code M7083-1013.
A (Thanks to monkeybrain20122 in the Ubuntu Forums) Probably your profile is corrupted. Close Chrome. Open the file manager at your home. Choose ‘show hidden files’ from the menu or press ctrl + h. Then locate the hidden directory .config (note the '.'), open it and rename the subfolder google-chrome to something like google-chrome-bak. Now start Chrome and see if it works.
Top questions at Askubuntu
* Can someone explain tilde usage? http://goo.gl/PUudGJ
* Is there any Ubuntu 14.04 theme to make it look like Windows 10? http://goo.gl/t82dtg
* Alert when terminal program finishes running? [on hold] http://goo.gl/OMN25E
* Which command should I use to open an mp3 file? http://goo.gl/1L8p1d
* Why do I need the x permission to cd into a directory? http://goo.gl/ihnMWI
* How to get a full size of directory without listing the files/dir within? http://goo.gl/KuRczJ
* Shell script If syntax error http://goo.gl/ynHh61
* What version is this Live CD / Live USB? http://goo.gl/xzOqJQ
* How to make it so that a file can only be executed by root, but not as root? http://goo.gl/rtm60i
Tips and Techniques
Private folder sharing
When I try a new distro or version of Linux, I always set up a folder which is shared over the network, and access existing shared folders on other computers. I always make it wide-open, with no security, and it always works without any command-line effort, or editing configuration files. The network has computers running several Ubuntu variants and some Windows. Then the real world came calling.
I needed to set up a production-environment server with about 20 private shared folders, to be used for personal backups. So Sally, Rebecca and John would each have a folder where they could back up their systems, and they could not see each other's backups.
The chosen operating system is Xubuntu 15.04, and I got it to the point where it kind of works. From other Xubuntu or Linux Mint systems, everything just worked. From Windows, not so much. The server didn't even appear in Windows' Network file manager, although it was always accessible by IP address. Then, with nothing changing, the server appeared, and I could set up the shared folder as a drive in Windows. However, when I tried to run a lengthy backup, the drive would disappear again, and the backup would fail.
I'm still working on it, and I hope to give a more positive report next month.