Is there a difference in meaning among 'should', 'happens to', or 'should happen to'?
Meaning of Conditional sentences with 'should' and 'happen to'
I want to mount the device /dev/sda3 to the directory /foo/bar/baz. After mounting the directory should have the uid of user johndoe. So I did:  sudo -u johndoe mkdir /foo/bar/baz stat -c %U /foo/bar/baz johndoe   and added the following line to my /etc/fstab:  /dev/sda3 /foo/bar/baz ext4 noexec,noatime,auto,owner,nodev,nosuid,user 0 1   When I do now sudo -u johndoe mount /dev/sda3 the command stat -c %U /foo/bar/baz results in root rather than johndoe. What is the best way to mount this ext4-filesystem with uid johndoe set? Efficiently select beginning and end of multiple contiguous ranges in Postgresql query I've got about a billion rows of data in a table with a name and an integer in the range 1-288.  For a given name, every int is unique, and not every possible integer in the range is present--so there are gaps.  This query generates an example case:  --what I have: SELECT * FROM ( VALUES ('foo', 2),               ('foo', 3),               ('foo', 4),               ('foo', 10),               ('foo', 11),               ('foo', 13),               ('bar', 1),               ('bar', 2),               ('bar', 3)      ) AS baz ("name", "int")   I'd like to generate a lookup table with a row for each name and sequence of contiguous integers.  Each such row would contain:  name   --  the value of the name column start  --  the first integer in the contiguous sequence end    --  the final value in the contiguous sequence span   --  end - start + 1  This query generates example output for the above example:  --what I need: SELECT *  FROM ( VALUES ('foo', 2, 4, 3),               ('foo', 10, 11, 2),               ('foo', 13, 13, 1),               ('bar', 1, 3, 3)      ) AS contiguous_ranges ("name", "start", "end", span)   Because I have so many rows, more efficient is better.  That said, I only have to run this query once, so it isn't an absolute requirement.  Thanks in advance!  Edit:  I should add that PL/pgSQL solutions are welcome (please explain any Fancy Tricks--I'm still new to PL/pgSQL). Why should users never use normal sudo to start graphical applications? Why can't I define a static method in a Java interface? Uk visa refused as self employed How to make terminal transparent while still having its own background image? Is there a way to give terminal specific background image and make it 50% transparent at the same time? I don’t actually need to run the command below, and I am aware of ssh keys if I did want to log in without typing a password. I would just like to know how ssh seems to circumvent my file redirection.  Running the following command, ssh prompts me for a password:  ssh nobody@192.168.1.151 &gt; /dev/null 2&gt; /dev/null &lt; /dev/null   How does this work? stdin, stdout, and stderr are all redirected, but ssh still manages to print a prompt on my screen and read what I type. I tried adding the ssh arguments -t -t and -T (not both at once), to enable or disable pseudo-tty allocation, but it made no difference.  I also tried closing all input and output this way, although I don’t know if I typed it correctly. Still, ssh prompts for a password:  (exec 0&lt;&amp;- 1&lt;&amp;- 2&lt;&amp;- 0&gt;&amp;- 1&gt;&amp;- 2&gt;&amp;-; ssh nobody@192.168.1.151) Ubuntu 16.04 slow boot (apt-daily.service) My boot is horribly slow, and I don't know why.  $ systemd-analyze  Startup finished in 10.975s (kernel) + 49.732s (userspace) = 1min 708ms $ systemd-analyze blame           34.971s apt-daily.service          20.590s snapd.refresh.service          17.113s grub-common.service          16.033s apport.service          16.027s networking.service          15.894s ondemand.service          15.860s irqbalance.service          15.655s speech-dispatcher.service          11.695s ModemManager.service           9.772s accounts-daemon.service           8.626s NetworkManager-wait-online.service           8.058s systemd-logind.service           8.053s bluetooth.service           7.944s gpu-manager.service           7.896s alsa-restore.service           7.892s pppd-dns.service           7.882s rsyslog.service           7.860s avahi-daemon.service           7.844s dev-sda1.device           7.842s systemd-user-sessions.service           7.648s lightdm.service           7.610s teamviewerd.service           6.445s apparmor.service   Also, during boot-up, I see a message that says something like:  device descriptor read/all, error -62 ata1 softreset failed (device not ready) #most of the times error loading journal #(sometimes) Test WP failed, assume Write Enabled Asking for cache data failed     #most of the times Assuming drive cache: write through   apt-daily.service slows the boot the most. Any idea on how to tackle that?  I have Ubuntu MATE 16.04. It is well known that compactness implies pseudocompactness; this follows from . I know that the converse does not hold, but what is a counterexample?  (A  is a topological space $S = \langle X,{\mathfrak I}\rangle$ such that every continuous function $f:S\to\Bbb R$ has bounded range.) running script with ". " and with "source " I was wondering if the following two ways of running a bash script are equivalent?  . ./myScript.sh  source myScript.sh  Are they both running the content of the script instead of running the script, i.e. not creating a subshell for running the script? Get specific GPS location somehow on windows 8 biblatex, authoryear style: In-text citations display first name initials for certain bibliography entries I was reading Brian Greene's "Hidden Reality" and came to the part about Hawking Radiation. Quantum jitters that occur near the event horizon of a black hole, which create both positive-energy particles and negative-energy particles, produce the so-called Hawking radiation. However, I do not understand why only the negative-energy particles are being absorbed into the black hole, while the positive-energy particles shoot outward. Shouldn't there be 50/50 chance that each type of particle is being absorbed by the black hole? Also, the book mentions that a negative-energy particle would appear to an observer inside the black hole as positive. Why? Site choice dropdown cannot be shown on Android app Steps to reproduce:   Ask a question, open the "Ask on which site?" dropdown menu. Press the back button.   Issue: the menu will disappear and you can't bring it back by tapping the arrow or the field. Only typing text or selecting another field then tapping back will return the dropdown menu. Adding Layer using esriRequest Response in ArcGIS API for JavaScript? For various reasons I need to add layers to a map object using a response returned by an esriRequest to an ArcGIS Server. One reason being the data will change constantly and hard coding FeatureLayer URLs would prove inefficient.  I have successfully been able to return a JSON object containing attribution that appears to be the same data one would see on the layers REST node.     maps = [];  require([     "esri/map", "esri/layers/FeatureLayer",      "esri/dijit/Print", "esri/tasks/PrintTemplate", "esri/request",      "esri/config","esri/dijit/BasemapToggle",      "dojo/_base/array", "dojo/dom", "dojo/parser",  "dojo/domReady!"  ], function (Map, FeatureLayer,Print, PrintTemplate, esriRequest,      esriConfig,BasemapToggle,arrayUtils, dom, parser){  parser.parse();  console.log("Map Start");  esriConfig.defaults.io.proxyUrl = "http://........./proxy.ashx";  maps.addRespLyrs = function addRespLyrs (layer) {     if (layer.type == "Feature layer") {         console.log(layer.name);         maps.map.addLayer(layer);     } };   maps.handleMapInfo = function handleMapInfo (resp) {     console.log("handleMapInfo called");     maps.layers = resp.layers;     console.log(maps.layers);     for (i in maps.layers) {         var layer = maps.layers[i];         maps.addRespLyrs(layer);     } };  maps.layerRequest = function layerRequest () {     var mapInfo = esriRequest({         "url": "https://........./Application Name/MapServer/layers",         "content" : {"f":"json"},         "handleAs" : "json",         "callbackParamName" : "callback"     });     mapInfo.then(maps.handleMapInfo); };  maps.map = new Map("cpCentCent", {     basemap:"topo",     center: [-98.5795, 39.8282],     zoom: 5 });   console.log("Map End");   When attempting to add the data using the addLayer() method I recieve an error thrown from deep with in esri's API.      init.js:199 TypeError: a.id.match is not a function(…) "TypeError: a.id.match is not a function   Any thoughts as to what could be going wrong here or how to create a layer from my JSON? The context is soccer (association football) and the sentence in question is:       The forward received the ball from the midfielder's pass.     I have already ask about this  and received alot of good answers, and I tried to leave it at that.  But then the World Cup 2014 is upon us, and I am starting to have doubts about this football usage of "from", to the point that I have semi-nightmares about it.  The use of "from" in the football example continues to bother me.  I seem to disagree (subconsciously) about how a ball (physical object) could be "from" a pass (action) unless that action creates that object.       Some people were hit by debris from the explosion.   The use of "from" in "debris from the explosion" makes excellent sense to me, because the explosion does create the debris.  But in soccer/football, the ball cannot possibly be "created" by a pass.    Is there any non-football usage of "from" similar to my football example sentence? Often (via Google Now, or when searching for a solution to some problem), I'll open a question from a non-favourite site in the app. Sometimes, I'd like to see what else is going on in the site where the question was posted. Currently, I have one of two ways:   Via tag icon:   Click one of the tag icons beneath the title Delete the [tag] text (at which point, thankfully, the sorting changes to Active from Votes).  Via manually searching for the site, which is more cumbersome. I type in hard and Hardware Recommendations is the fourth entry (below Ask Different, Raspberry Pi and Arduino)! This more annoying for meta sites, where I have to pick Meta from the dropdown menu.   Can I pretty please have a way to head to the site directly from the question? Maybe:   the site name in the top bar could become clickable and lead to the site, or an option in the More menu?     This would be especially useful for Meta sites, where questions posted around the same time could be related. Interestingly enough, most questions that Google Now are for metas of sites I visit on occasion, but haven't pinned to the list. Ubuntu 17.10, changing input switching to alt-shift (with gnome-tweaks) creates problem in firefox I recently installed Ubuntu 17.10, and when I tried to set my keyboard layout to change with alt+shift, I hit a . There is  which works, but then it creates an unwanted behaviour on Firefox (perhaps other programs as well).   After setting alt+shift through gnome-tweak-tool as the combination to change language, whenever this combination is pressed within Firefox, it triggers a toggle that Firefox uses to show/hide the Menu Bar (with File/Edit/View etc.), and 'focus' is taken away from wherever the cursor was.   It's very frustrating, because one has to go and click again at the cursor.  The only solution I found was to permanently enable Menu Bar in Firefox because then alt doesn't do anything and I can use it to change languages. But I don't want to have Menu Bar on top always.  I hope you can understand what I'm trying to explain.  Any thoughts? How to prove that if $\forall x \in (a,b)$ Lebesgue integral $\int_{(a,x)}fd\lambda=0$, then $f(x)=0$ $\lambda$-almost everywhere? Let $f:(a,b)\rightarrow\mathbb{R}$.  The statement to prove is that if $\forall x \in (a,b)$ Lebesgue integral $\int_{(a,x)}fd\lambda=0$, then $f(x)=0$ $\lambda$-almost everywhere.  So if it wouldn't be true then we would have $\forall x \in (a,b):\int_{(a,x)}f_+d\lambda=\int_{(a,x)}f_-d\lambda\neq0$, so every interval contains positive and negative values of the function. It is  such an $f$ so my guess would be that this function is not Lebesgue measurable and we can't take this integral.  Thanks in advance! How can I make sure that only low and medium security inmates are in a specific area? Is it possible to reverse the overlay you can set? It seems like you are only able to clear areas for low OR medium security prisoners, but sharing is not possible. The thing I want here is to make sure that max security prisoners are not in certain areas.