Gabriel's questions

I'm attempting to install the proprietary Nvidia drivers for my card:

$ lspci | grep VGA               
01:00.0 VGA compatible controller: NVIDIA Corporation G96 [GeForce 9500 GT] (rev a1)

on my system:

$ lsb_release -a -u
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.2 LTS
Release:    18.04
Codename:   bionic

I've followed the steps outlined here:

sudo apt-get purge nvidia*  
sudo apt-add-repository ppa:graphics-drivers/ppa
sudo apt update

but the command

sudo apt install nvidia-driver-

shows several available versions of the driver:

nvidia-driver-390  nvidia-driver-396  nvidia-driver-410  nvidia-driver-415  nvidia-driver-418

I've seen the 396 version used several times, but intuitively I would install the latest version. How do I know which one I should install?

I'm running Okular 0.20.2 on Ubuntu 12.04, I made some annotations to a PDF file and when I try to save a copy of it with Save as (to preserve the annotations), I get the message:

Your annotations will not be exported.
You can export the annotated document using File -> Export As -> Document Archive

I'm not sure why this happens since Okular should be able to save annotations since version 0.15.

That same page says something about how Okular should have been built using Poppler version 0.20 or later, but I'm not sure how to check this.

I'm having some issues when updating packages on Ubuntu 12.04:

Processing triggers for menu ...
Errors were encountered while processing:
 idle-python2.7
Setting up idle-python2.7 (2.7.3-0ubuntu3.5) ...
Traceback (most recent call last):
  File "/usr/lib/python2.7/compileall.py", line 16, in <module>
    import struct
  File "/usr/lib/python2.7/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
dpkg: error processing idle-python2.7 (--configure):
 subprocess installed post-installation script returned error exit status 1

I believe it can be related with idle-python2.7 and I want to remove it with:

sudo apt-get remove idle-python2.7

to see if that fixes it, but I'm afraid I'll bork my system.

Can I safely remove that package? How can I run a "trial removal" to see what would be removed along with it?

I have a folder composed of M several sub-folders, each of them containing some text files and N images (*.png)

This is what the tree looks like:

/parent/
  /sub-folder1/
   /data1.dat
   /data2.dat
   /image1.png
   /image2.png
   ...
   /imageN.png
 /sub-folder2/
   /data1.dat
   /data2.dat
   /image1.png
   /image2.png
   ...
   /imageN.png
 ...
 /sub-folderM/
   /data1.dat
   /data2.dat
   /image1.png
   /image2.png
   ...
   /imageN.png

notice that all images in each sub-folder are named the same (ie: image1.png, ..., imageN.png)

What I need is to move only the images into a new parent folder (say parent2), while replicating the sub-folder structure. After the moving is done the new parent folder should look like this:

/parent2/
  /sub-folder1/
   /image1.png
   /image2.png
   ...
   /imageN.png
 /sub-folder2/
   /image1.png
   /image2.png
   ...
   /imageN.png
 ...
 /sub-folderM/
   /image1.png
   /image2.png
   ...
   /imageN.png

(ie: only images and respecting the same sub-folders structure)

and the original parent folder should look like:

/parent/
  /sub-folder1/
   /data1.dat
   /data2.dat
 /sub-folder2/
   /data1.dat
   /data2.dat
 ...
 /sub-folderM/
   /data1.dat
   /data2.dat

(ie: images moved out)

I've seen some examples of scripts that can move all filed into a new folder (Shell script to move all files from subfolders to parent folder) or some that can move only images (Script to move pictures) but I haven't found one that would do so while respecting the sub-folders tree.

Ubuntu 12.04 comes with python v 2.7.3 by default. I want to upgrade it to v 2.7.5. I tried the instructions given in this question,

sudo apt-get install build-essential
sudo apt-get install libreadline-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev

cd ~/Downloads/
wget http://python.org/ftp/python/2.7.5/Python-2.7.5.tgz

tar -xvf Python-2.7.5.tgz
cd Python-2.7.5

./configure
make
sudo make altinstall

The last command fails with the error:

...
Compiling /usr/local/lib/python2.7/xmlrpclib.py ...
Compiling /usr/local/lib/python2.7/zipfile.py ...
make: *** [libinstall] Error 1

How can I make this upgrade?

I recently installed Steam and I see the game Left 4 Dead 2 appear twice, once with a Beta tag and another with the same tag but between parenthesis. Here's a screen capture of what I'm seeing:

What's the difference between these two?

A few days ago I installed the one with the Beta tag in parenthesis and today I purchased the Left 4 Dead + Left 4 Dead 2 bundle (http://store.steampowered.com/sub/2487/) but so far Left 4 Dead 2 hasn't showed up in my Library. Is it the same as the one I already installed? Should I wait a bit more for it to start downloading (it's been ~30 minutes)? This is really confusing.

I have most of my disk space in an ext4 partition which I automountt on startup through fstab. The corresponding line in fstabis this one:

/dev/sda9 /media/rest    ext4  users,user    0  0

Now I'm trying to install a game through Steam and I want the data folder to be stored in said partition, but when I try to select a folder in it I get the error:

New Steam library folder must be on a filesystem mounted with execute permissions

So I need that partition to have execute permissions. I'm guessing modifying the line in fstab to this might do the trick:

/dev/sda9 /media/rest    ext4  users,user,exec    0  0

but I'm not really sure and I don't want to mess up my system. Is this the correct solution for the mentioned issue?

I have Unity Tweak Tool v0.03 installed and it shows the options "Spread all Windows" and "Window Spread" in the Hotcorners section as different actions.

What is supposed to be the difference between these two options? For what I can tell, they do the exact same thing.

I'm trying to write a simple Python script using Geany. This IDE will automatically compile the code I write but I'm not sure which version of Python it is using. If I enter python --version in the command line I get:

Python 2.7.3

but if I enter python3 I get:

Python 3.2.3 (default, Oct 19 2012, 19:53:16) 
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

Does Ubuntu come with both versions? If so, which one is Geany using to compile?

how could I re-map the 'Super' (left) key to launch an app? I want to launch Synapse with it, which is far more responsive than the Unity launcher. Cheers.

I've recently upgraded to Ubuntu 12.10 and since then conky has been acting up. This is what it looks after a while (specially if I use the option 'Show desktop' by draggin the mouse to a corner, as Ubuntu Tweak permits you to do):

This is my .conkyrc file and my ~/.conky/bargraph_small.lua file.

I tried tweaking the setting around but it seems a bit random, at times it will work and at times it will not. Any ideas? Cheers.

I recently installed KDE with the command sudo apt-get install kubuntu-desktop.

Now whenever I log into Unity I can see KDE-related services running in the background and I see no obvious way to prevent them from opening at startup. I checked bum but I see nothing there.

These are the services I see running right now:

kde4 klauncher knotify4

These ones I can identify as being related to KDE given their names, but there could be more.

How can I prevent these services from launching by themselves?

I should mention I often use KDE applications such as kate, okular and kile. Could these be responsible for opening those services?

Possible Duplicate:
Default save directory for gnome-screenshot?

The Print Screen window that appears when pressing the ImprPant button (at least, that's what it's called in my keyboard) has the "Save Folder" set to /home/myusername/ by default. I'd like to change that folder so that /home/myusername/Downloads/is the default, but there are no options available that I can see.

How can I do this?

My system is Ubuntu 12.04 64 bit + Unity and it uses ~480Mb with no other processes-apps open, just the core system. Is this the expected amount? It seems a bit steep to me but perhaps this is normal behavior.

I want to report a bug in Skype Wrapper here but am not able to do it. Do I need to be a member to report a bug? I have a Launchpad account and I tried reporting it while logged in but I see no option to do so.

Why does Ubuntu come with Totem set as default? Is there a reason or am I just wrongly assuming everybody thinks Totem is actually inferior to VLC?

Not to mention VLC is vastly known as perhaps the best video player for Windows, which would help with a smoother transition to Windows users making the switch.

I'm reinstalling my Kubuntu 12.04 and I want to take my Kate, Kile, Okular, Dolphin & Konsole config files with me.

Where are this files located? I've looked around /home/, /home/.kde/ and /home/.config/ but found nothing.

Perhaps it's a silly question but I've recently purchased a new motherboard and of course it came with a CD with it's drivers only for Windows systems (you know, the Autorun cr@p and all that)

So, should I somehow try to obtain these drivers from the vendor for my Linux system or is that not necessary since the OS installation will take care of it by itself?

I'm about to re-install my system. I like to keep a separate /home and / root partitions. I've been using (K)Ubuntu for around a year now and my / partition (almost 36Gb) never climbed over ~13Gb of used space.

What would you say is the appropriate maximum size one should set a / partition to?

My question is pretty simple. I have Ubuntu 12.04 with Unity and I want to login with KDE.

I have seen recommendations to:

1- run the three commands:
$ sudo add-apt-repository ppa:kubuntu-ppa/backports
$ sudo apt-get update
$ sudo apt-get install kubuntu-desktop

2- run just the command:
$ sudo apt-get install kubuntu-desktop

3- run the command:
$ sudo apt-get install kde-standard

4- run the command:
$ sudo apt-get install kde-full

5- run the command:
$ sudo apt-get install plasma-desktop

6- run the command:
$ sudo apt-get install kde-plasma-desktop

7- etc ...

This question is very related to this one, but the answer there is not clear enough to me. There seems to be quite a number of quasi-identical commands one could use to install the KDE desktop.

I just want the desktop, no KDE apps since I'll just use the ones I'm already using in Unity. Of course I also want the needed repositories added so the KDE desktop will be kept updated.

How would I go about doing that?