Rails: is it possible to remember user automatically in Devise?
How to automatically keep user remembered in Devise
How can I create a /dev/null-like "blackhole" directory? I would like to create a "/dev/null" directory (or a "blackhole" directory) such that any files written to it are not really written, but just disappear.   I have an application that writes out large temporary files to a directory. I have no control over the name of the files and I don't really care about the content of these files. I could write a script that periodically clobbers these files, but the files are written out very quickly and fill my disk. I'm looking for something cleverer. I want the application to "think" that it is writing out these files, when in fact, the writes are just being discarded at the other end.  Also see  old related thread. $4x^2+1$ factors only into $4y+1$ primes Proof that Limit of the Log is the Log of the Limit Proof that Limit of the Log is the Log of the Limit. What is the intuition behind this statement? What is the difference between CentOS "DVD" vs "Everything" ISOs Listing feature classes with active domains? I think it would be very useful.  I have a question that I have an open bounty on. Putting up said bounty brought my reputation below the point where I am allowed to comment on other peoples' posts. It's so frustrating not to be able to comment and give feedback on the answers given!  Especially since it would be helpful, for them, me, and the readers, to know particularly what is good and isn't good about their answer, and therefore give some better guidelines to future answerers on how they can win the bounty. Syntax highlighting language hints Do you think it would be worthwhile to provide hints as to what language to use for the syntax highlighting?  Sometimes I find the highlighting on SQL or VB.NET answers is more distracting than helpful; for example:       to pick the two I've been looking at recently. How to reinstall kernels after accidental deletion with a separate boot partition and an encrypted LVM volume? How do I choose what shows up in PuTTY title bar from Linux? In the PuTTY configuration there's an option in Terminal &rarr; Features called Disable remote-controlled window title changing. Without that enabled, the title bar of PuTTY will change every time I press return in the console.  I was thinking it'd be a more clean solution to set the title bar text from Linux than to specify one for every PuTTY client I have laying around. So where can I modify what Linux sets as the window title?     $ uname -a Linux drevo 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012 x86_64 GNU/Linux  $ cat /etc/debian_version 6.0.4 I asked  that turned out to have multiple correct answers. How do I pick between them to determine which to accept?  All of the answers were different. They were not the same answer given multiple times. Disable password access through SSH? I'm setting up a server for backing up my desktop box remotely. I want to prevent remote password access to the server, permitting only users with private keys (AKA my desktop box) to access it. How can I block remote password access while allowing physical password access to the server? I'm fairly new to DMing and so is my group, so we are all on a learning curve together. We're playing D&amp;D 5e.  Last week a fighter in our group tamed a wolf with Animal Handling and then requested that he keep the wolf. I allowed this, but now I'm not sure about how to play the wolf.  Specifically, how can he train the wolf to perform certain actions such as attacking?  What other things might I need to be aware of with a PC owning a "pet"? How come such different methods result in the same number, $e$? I guess the proof of the identity $$ \sum_{n = 0}^{\infty} \frac{1}{n!} \equiv \lim_{x \to \infty} \left(1 + \frac{1}{x}\right)^x $$ explains the connection between such different calculations. How is it done? My motherboard currently supports both SATA II and III (3 Gb/s and 6Gb/s respectively), but after reading some online, it seems as though connecting a HDD to the 6 Gb/s is pretty much pointless. If this is the case I'm going to leave my two SATA III ports open for something that can actually use it (which at this point I'm not really sure what can).  This is part of an article I read:     In terms of everything else, we saw basically no difference from the same single drive being plugged into a SATA 6Gb/s or SATA 3Gb/s port. All of this is obviously due to the hard drive not being able to actually take advantage of the 6Gb/s bus.   from . Most MTP () devices show up in Windows File Explorer under their device name or a GUID, but they don't have a drive letter assigned.  How can I access the files on such devices from the command line? Using either cmd.exe or PowerShell. Correct use of will & would? What would be the correct use of will &amp; would in these sentences?  1) What will happen if I say to my boss that I will not come tomorrow?  2) What will happen if I would say to my boss that I will not come tomorrow?  3) What will happen if I will say to my boss that I will not come tomorrow?  4) What would happen if I would say to my boss that I will not come tomorrow?  There are four sentences which one should I use and in which situation? How to create a Facebook page without a personal account In the past, Facebook used to let business create pages or apps without a personal account. This account created in the page/app creation process had limited capacities and could be switch to a full personal account after—if needed (irreversible).  But today, if I want to create a page for a new brand, without having a Facebook account, it seems I can’t anymore. And I can’t find any communication from Facebook regarding this change.   Anybody has any info? Is it still possible (in a new way maybe)? Theme Image Style for image located in module directory Probably coming at this from too much of a Drupal 6 view point but...  How do I theme an image in a given image style when that image lives in a module folder?  This is driving me batty and I know I'm just missing something simple.  Here is some example code showing what I'm trying to do:  $file_uri = 'public://sites/all/modules/my_module/logo.jpg'; $data['logo'] = theme('image_style', array('style_name' =&gt; 'medium', 'path' =&gt; $file_uri));   Even if I use file_build_uri(), I end up with a path to a file that doesn't exist. If I move the image to the files directory and change the $file_uri to 'public://logo.jpg', it works just fine.  Do I need to copy the image to the files directory as part of the module code?  If so, isn't this ridiculous?  What am I missing?  Is there documentation on how to do something like this?  I've spent over an hour mining the Drupal documentation and came up completely dry. How to parse a date? After I deleted my Ubuntu partition, I rebooted my computer and I only get a prompt:   grub rescue &gt;   The command ls lists   (hd0) (hd0,msdos5) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1) (hd1) (hd1,msdos1)   I check them one by one:  ls (hd0,msdos5)/ ls (hd0,msdos1)/   But I cannot find the right partition.