Can somebody help me? I’m new to Ubuntu, and I need help elevating my privileges to root. All I’m getting is:   darion@darion-HP-2000-Notebook-PC:~$ sudo -i nautilus [sudo] password for darion:   (nautilus:3306): Gtk-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus. Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files  (nautilus:3306): GLib-GObject-WARNING **: invalid cast from 'GtkMessageDialog' to 'NautilusWindow' ** ERROR:nautilus-window.c:2116:nautilus_window_get_slots: assertion failed:(NAUTILUS_IS_WINDOW (window))
I've been using gksudo nautilus and sudo nautilus through Alt+F2.   What's the difference? They look very similar!
Why does copying the same amount of data take longer if spread across many separate files? I noticed that copying 24Mb worth of data from one folder to another took about 30 seconds because (I'm assuming this is the reason) it was over 1,000 separate files. Copying 24Mb shouldn't take so long. Why does the number of files make a different?  I'm running Windows 7 on a MacBook (4GB ram, Intel(R) Core(TM)2 Duo CPU P7450 @ 2.13GHz, 32-bit Operating System)  EDIT: NTFS is the file system used on the drive How to convince airport security that I am not dangerous when having metallic parts in my body? I had an operation some time ago and now I have small screws in my shoulder which will not be removed anymore. When I decided to fly for vacation, I supposed that these will may bring me into trouble at the airport when going through the metal detector.  So I asked my doctor and at the hospital if there is any kind of "passport" or something similar which confirms the screws in my shoulder so that I do not get into many problems. Unfortunately, they told me such things do only exist if you get a new knee or something, not if you just have a few screws in your body.  When I flew from Vienna to Amsterdam and back, my fears were confirmed: The security staff inspected me very precise, and I had to explain them my story. Thank god I have some scars left so they believed me!  However this is not a permanent solution for the future. Is there any international "passport" which my doctor and hospital do not know about? If not, what else are my possibilities?  I am not that afraid when travelling within the EU, however I fear that this situation might get quite dangerous when I'm in other countries... Evaluating logistic regression and interpretation of Hosmer-Lemeshow Goodness of Fit I want to describe the variables involved in an equation in an itemized environment such that every item begins with the variable name and subsequently comes the description for it. I'd like to have all the descriptions left aligned.  Here is a MWE that of course does not produce what I am looking for.  \documentclass{standalone} \begin{document} $E[g(x)] = \int_{-\infty}^{+\infty} f_X(x) \, g(x) \, \mathrm{d}x$. % where, % \begin{itemize}     \item $x$      \quad is a continuous random variable.     \item $f_X(x)$ \quad is the PDF of $x$.     \item $g(x)$   \quad is a function of $x$. \end{itemize} \end{document} What, exactly, is transferred along supply lines? Supply routes are great when a settlement is just starting out to get things off the ground, but what is specifically transferred along them? I know anything on the  Junk, Aid and Mods tabs are transferred, and Fusion cores and Power Armor pieces aren't. Does that mean weapons, armor and ammo aren't transferred at all?  And what about Food and Water resources? Can I build a farming community with a surplus of food and use that to feed a merchant-only settlement, or are local crops always required? Ditto water. I need to amend my return but I already received check from IRS with my refund. Should I cash it out now or wait until I amend my return? I need to amend my return, but I have already received a check from IRS (they approved my return that I need to amend). Should I cash out this check and then amend my return, or should I dispose this check and wait for a check from an amended return? How to import footage in the VSE for optimal playback and organization? How to import footage in VSE for optimal playback and organization, using proxies and workarounds? Is there a good way to remove HTML from a Java string? A simple regex like replaceAll(&quot;\\&lt;.*?&gt;&quot;, &quot;&quot;)   will work, but things like &amp;amp; wont be converted correctly and non-HTML between the two angle brackets will be removed (i.e. the .*? in the regex will disappear). Will I get OTA updates after installing Android L Developer preview? Why won't OS X trust GitHub's SSL certificate? How to generate the random default "gravatars" like on Stack Overflow? How does Stack Overflow auto-generate the gravatars for those users who do not upload a picture or who have not created a Gravatar icon?    Where do these random avatars come from, and how can I generate them for my own site? I am teaching how to convert from one base to another base, however, I can't find a way to do something like this:    I know little about Tikz, the only thing I have been able to produce is a simple square with a couple of lines over it, so I don't even know where to start. Any suggestions? I don't mind typing all the numbers, what I want to do is to automatize the process of creating the lines. Delete all files except files with the extension pdf in a directory I am trying to recall the name of a story I read when I was fairly young (maybe 20 years ago, but not sure how old the story is).    What I remember: A man acquires a set of creatures that he keeps in his house, I think in an aquarium.  They evolve over time, quickly, and think of him as their benevolent god. They build statues in his likeness.   Then, I believe some sort of accident happens, and the statues they build become a little less benevolent, which bothers him.  This pattern continues on with his cruelty increasing and their depiction of him becoming more cruel. How to handle client requests to violate copyrights? Unchained Flurry of Blows with Natural Weapons and Feral Combat Training using natural attacks as primary "You've earned (badge)" panel layouts are broken When I visit  I see this:     The "Congratulations! You've earned (badge)" section has dropped down completely beneath the tabs under it. The "You've earned a new privilege!" section has a gap at the bottom:     Shog9 says in comments how to reproduce this:     Gotta have earned a badge, not dismissed the notification, and be looking at your own profile. How do I select an object in the 3D viewport? In the annual rep league, why isn't the difference between rep earned this year and total rep always the same? In the  here on Meta Stack Exchange, it shows that I've earned 9,876 rep this year, and 10,359 rep overall. (It's updated every day at 0:00 UTC, and I so far have earned 1 rep today, since an answer I downvoted a while ago was deleted.)  The difference between my total rep and the rep I earned this year is 483, which means 483 of the rep I've earned is rep I earned in 2017 or earlier. This amount normally never changes, though I can see some reasons why it might change, such as if rep is recalculated and something affects a rep event occurring in a previous year (e.g. a vote from last year was invalidated due to user deletion, a post I made at that time was deleted or undeleted, etc.)  This amount, 483, was a recent change; it used to be 461. Ordinarily, I'd chalk this up to a rep event from last year being recalculated, but I've gone through my full rep history and I can see nothing of the sort happening. On the other hand, on the same day that this number changed from 461 to 483,  was undeleted, recalculating my rep and giving me back 22 (which happens to equal 483-461). It therefore makes sense if that post was from a previous year. However, the post is from this year, so it doesn't make very much sense.  Is there a bug in the way yearly rep in the rep league is calculated, in that rep regained from an undeleted post made the same year is not re-added to the rep earned this year (while it is subtracted properly upon deletion)? Or is there some other event that occurred in the three weeks before 2018 that I had my account that caused this difference to change, that I'm not seeing, and the change being equal to that is just a coincidence? Let $X,Y,Z$ be subspaces of $V$ so that $X$ is a subspace of $Y$. Prove that $Y\cap (X+Z)=X+(Y\cap Z)$ Let $X,Y,Z$ be subspaces of $V$ so that $X$ is a subspace of $Y$. Prove that $Y\cap (X+Z)=X+(Y\cap Z)$  I know that I need to prove that $Y\cap (X+Z)\subseteq X+(Y\cap Z)$ and $X+(Y\cap Z)\subseteq Y\cap (X+Z)$ but I´m having a hard time.  Can you lend me a hand please? I would really appreciate it