How does stackoverflow check the attention of reviewer? I was just reviewing on Late answer post over stackoverflow, and after moment when I cleared my review, it says following :   I was amazed by seeing this message... :) indeed I was paying attention, but my question is what tech or algorithm it follows to check whether reviewers really paying his attention or not ? (My guess is detecting time spending on the question with scroll and mouse moment, but not sure..)
What are review tests (audits) and how do they work? I recently received this rather amusing message while reviewing a user's first post:  Congratulations! This was only a test, designed to make sure you were paying attention. This post has already been removed, but thanks for taking time to leave feedback for the author.   What is the purpose of this test? How does the audit work? What happens if I fail? Why was the system expecting me to negatively review a good post, or positively review a bad post? A review is obviously an audit. Should I report it? Do review audits count toward the Reviewer badge? Do robo-reviewers dream of electric sheep?
How to run long time process on Udev event? I want to run a ppp connection when my USB modem is connected, so I use this udev rule:  ACTION=="add", SUBSYSTEM=="tty", ATTRS{idVendor}=="16d8",\     RUN+="/usr/local/bin/newPPP.sh $env{DEVNAME}"  (My modem appears in /dev as ttyACM0)  newPPP.sh:  #!/bin/bash /usr/bin/pon prov $1 &gt;/dev/null 2&gt;&amp;1 &amp;   Problem:  The udev event fires, and newPPP.sh is running, but newPPP.sh process is killed after ~4-5s. ppp does not have time to connect (its timeout is 10s for dial up).  How can I run a long time process, that will not be killed?  I tried using nohup, but it didn't work either.  System: Arch Linux  Update  I found a solution , thanks to .  I use at now to run my job detached from udev process.  But the one question remains unanswered: Why do nohup and &amp; not work? Why can't Inuzuka clan's dogs use human language? How do I remove snap? apt pretends it's not there but I can still call commands with it.  Trying to rm it says "read only file system"  root@tunnel:/# apt remove snap Reading package lists... Done Building dependency tree Reading state information... Done Package 'snap' is not installed, so not removed 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@tunnel:/# snap whoami email: - Show $a\Bbb Z+b\Bbb Z = \gcd(a,b)\Bbb Z$ I wanted to send a single email to different users. I save an email to drafts and send the email to a user and it goes to the sent box instead of staying in the drafts box. Is there a way I can send an email repeatedly from the drafts box? How does a zener diode and a resistor regulate voltage? How to create a SQL Server function to "join" multiple rows from a subquery into a single delimited field? Is it possible to copy an object in Illustrator so that if you make a change in any of them the changes will apply in both? Actually I have this situation where I have a lot of instances of the same object and I need to be faster on changes and copy-ing again and again is not a proper solution, but consumes a lot fo time.  Thank you for your time! What are the powers shown by the Rings of Power? how to plot two graphs in a single sheet? I am new to Latex. Cann some one tell me how can I plot two graphs in a single page and How can resize the legend. I have attached the picture how the legend looks. I need it out from the plot and how can i have gridded lines in the plot. Please help me. My code is as follows: \documentclass[12pt, a4paper]{report} \usepackage{filecontents,pgfplots}  \begin{filecontents}{mydata.dat} m0_FEED, AT 773.15K, AT 823.15K, AT 873.15K, AT 923.15K, AT 973.15K 0.005, 1.30E+04, 12959.71536,12959.71536,12959.71536,12959.71536 0.007, 1.81E+04, 18145.78478,18145.78478,18145.78478,18145.784 0.009, 2.33E+04, 23333.9541,23333.9541,23333.9541,23333.9541 0.011, 2.85E+04, 28524.71381,28524.71381,28524.71381,28524.71381 0.013, 3.37E+04, 33718.48576,33718.48576,33718.48576,33718.48576 0.015, 3.89E+04, 38915.61947,38915.61947,38915.61947,38915.61947 0.017, 4.41E+04, 44116.39602,44116.39603,44116.39603,44116.39603 0.019, 4.93E+04, 49321.02848,49321.02848,49321.02878,49321.02849 0.021, 5.45E+04, 54529.67237,54529.67238,54529.67238,54529.67238 \end{filecontents}  \begin{document}   \pgfplotstableread[col sep=comma]{mydata.dat}{\mydata} \begin{tikzpicture}[scale=1.8] \begin{axis}[minor tick num=1, xlabel=Degrees, ylabel = temperature] \addplot [black,very thick] table [x={m0_FEED}, y={AT 773.15K}] {\mydata}; \addplot [red,very thick] table [x={m0_FEED}, y={AT 823.15K}] {\mydata}; \addplot [blue,very thick] table [x={m0_FEED}, y={AT 873.15K}] {\mydata}; \addplot [green,very thick] table [x={m0_FEED}, y={AT 923.15K}] {\mydata}; \addplot [dashed,yellow,very thick] table [x={m0_FEED}, y={AT 973.15K}] {\mydata}; \legend{AT773.15K, AT823.15K, AT873.15K, AT923.15K, AT973.15K} \end{axis} \end{tikzpicture}  \begin{filecontents}{mydatax.dat} m0_FEED AT 773.15K  AT 823.15K  AT 873.15K  AT 923.15K  AT 973.15K 0.005   4.06E+03    4601.511738 5147.966831 5703.120845 6267.035737 0.007   5.69E+03    6439.241858 7204.278989 7981.494608 8625.923 0.009   7.31E+03    8274.205759 9257.824928 10257.10215 11272.14896 0.011   8.92E+03    10105.75535 11307.95656 12529.29539 13769.90815 0.013   1.05E+04    11933.33165 13354.1149  14797.51533 16263.69405 0.015   1.21E+04    13756.46929 15395.83457 17061.29661 18753.04129 0.017   1.37E+04    15574.79159 17432.7389  19320.26254 21237.57317 0.019   1.53E+04    17388.009   19464.53834 21574.12348 23717.00014 0.021   1.69E+04    19195.90581 21491.01717 23822.664   26191.10653 \end{filecontents}  \pgfplotstableread{mydatax.dat}{\mydatax} \begin{tikzpicture}[scale=2] \begin{axis}[minor tick num=1, xlabel=Degrees, ylabel = temperature] \addplot [black,very thick] table [x={m0_FEED}, y={AT 773.15K}] {\mydatax}; \addplot [red,very thick] table [x={m0_FEED}, y={AT 823.15K}] {\mydatax}; \addplot [blue,very thick] table [x={m0_FEED}, y={AT 873.15K}] {\mydatax}; \addplot [green,very thick] table [x={m0_FEED}, y={AT 923.15K}] {\mydatax}; \addplot [dashed,yellow,very thick] table [x={m0_FEED}, y={AT 973.15K}] {\mydatax}; \legend{AT773.15K, AT823.15K, AT873.15K, AT923.15K, AT973.15K} \end{axis} \end{tikzpicture}   \end{document} My daughter asked me to cosign on a car loan.  Somehow I ended up as the borrower and she a the cosigner.  Is that legal? For some time, Microsoft has supported an option to remove the limit of 260 symbols for NTFS file name length.  The web is full of articles, describing what should be done.   Hit the Windows key, type gpedit.msc and press Enter. Navigate to Local Computer Policy > Computer Configuration > Administrative Templates > System > Filesystem > NTFS. Double click the Enable NTFS long paths option and enable it.   However, I don't have such option. Please see the screenshot below:    Am I missing some Windows update, or is it something else? Draw power from a portable mobile charger to power circuits I usually power my beginner prototype circuits using mb102 power supply board, but it needs an external elimeter to draw power and then regulate it.  I was looking for a portable solution for my 5 volt and 3.3 volt circuit needs and came up with using a portable battery charger for mobile phones.  I tried powering up a simple transistor and LED circuit with it but it wouldn't power-up.   I feel that there is some load sensing circuit in the portable charger which doesn't detect these low power circuits.  I also tried connecting different resistors to the charger, the charger outputs 5 Volts for a few seconds and then again shuts down and doesn't stay ON continuously.  It would be really comfortable to use a portable charger since it could be charged using a phone charger and would be very handy.  What can I do to make the charger output power on low loads? How to make files protected? How to make some file that contains crucial data protected? For instance, suppose I have some files that are important, is there any method or strategy to make these kind of file more protected on Ubuntu? I even want to make some files ask for a password whenever someone tries to open it. Does it affect the version of Ubuntu in terms of security policy? May I use any encryption algorithm externally? Regards. I'm using Android 4.4.2 (on ). I've a Windows PC at home which has highspeed broadband internet connection. I don't have wireless router or access point. I just want to use PC's internet connection on my phone. I've tried multiple methods but none seems to work.  Method 1: Using native Android 4.4.2 option  In my phone when I connect my phone, in Settings &gt; Wireless &amp; networks &gt; USB Internet (sharing Windows PC internet via USB cable) checkbox, which I checked then it asked me to choose my Windows version (which is Windows 8.1 but since it didn't show that option) I chose Windows 8.  It gives me further instructions as showing in the following picture:    Here is the problem, there is no sharing tab (see the following screen shot)   Method 2: As described in   I learned on this site that it is called Reverse tethering. I read and followed the procedure mentioned in    I followed all the steps described in that answer, until executing the command.   Install USB drivers from Android SDK [DONE] Connect USB cable and activate USB Tethering (You should see on a new network interface.) [DONE] Bridge the 2 network interfaces [DONE] On your computer execute adb shell netcfg usb0 dhcp [PROBLEM]   When I execute adb shell netcfg usb0 dhcp it says: error: device not found. I tried the same thing with USB Debugging in Developer settings, ON &amp; OFF. The error remains the same.  Method 3: Rooting the device and using an app  I read here and there that there is another method, in which we can directly use an app but it requires rooting the device. My phone is a new phone and warranty becomes void if I root it.   EDIT: I've tried the method suggested in answer, at the 4th step of method 2, I'm facing this problem: Replace a xtick by a letter in Tikz Is there any formula for number of divisors of $a \times b$? Let $a$ and $b$ be two numbers,    Number of divisors of $a$ is $n_1$; Number of divisors of $b$ is $n_2$;    How to find the number of divisors $N$ of product $a \times b$ by using known number of divisors of factors $n_1$ and $n_2$?  If $a = 20$ and $b = 21$, then $n_1 = 6$ (number of divisors of $a$), $n_2 = 4$ (number of divisors of $b$. Then $a \times b = 420$ and $N = 32$ (number of divisors of $a \times b$).  Is there a formula to find $N$ in terms of $n_1$ and $n_2$? What is least angle regression? Conceptually, I don't understand what least angle regression Least Angle Regression (LARS) is and why it solves LASSO ().  We know that LASSO is:   $$\arg \min_x {\left\| A x - y \right\|}_{2}^{2} + \lambda {\left\| x \right\|}_{1}$$  From my understanding LARS is exactly like line search from CGD, where you take the variable that gives you the most desire result and iterate through.  Can someone give a walk through on how LARS solves LASSO? Change email login to another id My original email id got compromised and now I want my new email id to be the main id for all SE sites . How to delete original id from the system as someone else might login from it ? Row colour gaps in tabularx with \aboverulesep and \{} \documentclass[]{article} \usepackage[table,dvipsnames]{xcolor} \usepackage{multicol,booktabs,tabularx}  % Table settings \renewcommand{\aboverulesep}{1pt} \renewcommand{\belowrulesep}{1pt}  \begin{document}     \begin{tabularx}{\textwidth}{@{}X l@{}}         This is Header 1 &amp; This is Header 2 \\         \toprule         \rowcolor{Apricot}         This is Text 1 &amp; This is Text 2 \\\midrule         This is Text 1 &amp; This is Text 2 \\\midrule         This is Text 1 &amp; This is Text 2 \\         \bottomrule     \end{tabularx} \end{document}   I have the above table MWE using tabularx, and I am trying to colour the row from the table. However, due to the use of my \aboverulesep and \belowrulesep, I now have gaps above and below my table row that is not coloured.   Also, because of the use of my @{} on either side of the table to 'remove' the excess padding on the sides of the table, the row colour is being applied in those padding as well.   Qn 1: How can I colour the aforementioned gaps (arising due to the \aboverulesep) in, while maintaining the rule separation?   Qn 2: How to remove the colour from the two sides of the table?     EDIT  This is in response to Zarko's answer. I want to maintain the use of @{} on either side to remove the padding. If I were to adapt this into your answer, like so:  % @Zarko's answer \documentclass{article} \usepackage[table,dvipsnames]{xcolor} \usepackage{booktabs, cellspace, tabularx}  % Table settings \renewcommand{\aboverulesep}{0pt} \renewcommand{\belowrulesep}{0pt} \setlength\cellspacetoplimit{5pt} \setlength\cellspacebottomlimit{5pt}  \begin{document}     \begin{tabularx}{\textwidth}{@{}SX Sl@{}}% &lt;-- S is append for activate additional vertical space          This is Header 1 &amp; This is Header 2 \\         \toprule         \rowcolor{Apricot}         This is Text 1 &amp; This is Text 2 \\\midrule         This is Text 1 &amp; This is Text 2 \\\midrule         This is Text 1 &amp; This is Text 2 \\         \bottomrule     \end{tabularx} \end{document}   I obtain this:   and so my second question (Qn2) is still unresolved.. For Qn 1, I prefer to use the solution by @Skillmon with \renewcommand{\arraystretch}{1.15} as I need not add a new package.