Removing GRUB from windows system after uninstalling Ubuntu from Windows 7
How to remove Ubuntu and put Windows back on?
Do you need line of sight to cast spells on someone? Default route lost on reboot I make heavy use of screen's "log" command to log the output of a session to a file, when I am making changes in a given environment. I searched through tmux's man page, but couldn't find an equivalent. Is anyone aware of a similar feature in tmux, or do I have to write my own wrapper scripts to do this?  EDIT: I'm aware of 'script' and other utilities that allow me to log a session. The reason that screen's functionality is so useful is the ability to define a logfile variable which uses string escapes to uniquely identify each session.  e.g. I have a shell function which, given a hostname, will SSH to that host in a new screen window and set the window title to the hostname. When I start a log of that session, it is prefixed with the window title.  If this functionality doesn't exist in tmux, I'll have to create a new set of shell functions to set up 'scripts' of sessions I want to log. This isn't hugely difficult, but it may not be worth the effort given that screen does exactly what I need already. How to only substitute lines that match several patterns in sed? $ echo -e 'CH12\nCH23au' | sed '/^CH/s=^=&lt;b&gt;=' &lt;b&gt;CH12 &lt;b&gt;CH23au   I know I can match lines starting with CH by ^CH but how can I match multiple patterns?   Example:  Input:  CH12 CH23au   Output:  CH12 &lt;b&gt;CH23au   How to only put &lt;b&gt; where there is ^CH and au in the line? In the Avengers movie, was Thor going to kill Captain America during his woods battle with Iron Man? Grammatically, what is "It" in the following sentence? I'm currently working at a private academy in Korea, and my boss just asked me a real head-scratcher.   In the sentence:     It doesn't have to be hot and humid for players to lose too much water from their bodies.    I'm aware that "It" is a subject pronoun replacing "The weather." Besides that, however, I'm unsure.   Is it a false subject? I wouldn't think so since it's a pronoun. Is it some crazy kind of indirect object?  Anyway, thank you all for your help! How do I make an Bootable Ubuntu USB containing the the latest version of Ubuntu?  For completeness, how would I be able to do this on Ubuntu, Windows, OS X or another Linux distro? How to compare two columns and find differences in Excel? I have two columns in Excel that I want to compare and find the differences between them.  Suppose:   Col A has 50 numbers, i.e. 0511234567 Col B has 100 numbers in the same format Stack Exchange iOS app nearing beta We're getting very close to releasing our iOS app on the App Store.  Since the , we have taken on hundreds of users, fixed a lot of bugs, and we have approached feature completion for v1.0.  We're still working on finishing touches and fixing crashes - but there aren't too many of those these days.  We believe we'll have this out in .    Current Alpha Testers:  We want to extend to you a huge thank you for using our app and giving us feedback.  We've made a ton of improvements that filtered through  here on meta.  We're pretty greedy, though, and we want more of your feedback as we get close to beta.  If you've been using the app, please leave an answer to tell us how you think we've done so far.  Don't go easy on us - we want to get this as right as we can before hitting the App Store.  You might even consider telling us how many stars you would give us if we were in the store.  Also, we created a room called  for more casual discussion about the app.  Everyone Else:  The alpha will continue in the interim, and we still .  The invitations are sent out once a week (usually), so if you don't get an invite right away, don't panic.  We'll get to you.  Bugs or feature requests should be reported here on meta and tagged .  Update, 5/1/2014    As of today, the app is submitted for review.  A great big thanks to all our alpha testers!  Your feedback has been invaluable and has truly helped us make the app much better than it would have been without you.  So what now?  Well, we intend to keep the alpha test group around, except now we're considering it the "beta channel".  It's still important to us, particularly since the update cycle through the AppStore is slow.  We'll still roll out updates in the same way that we have been.  We will also from time ask for targeted feedback on specific features.  And, lastly, if you're just now getting here and wished you had signed up for the alpha, feel free to sign up now anyway.  The form is still there, and we may still let in additional users to the beta channel depending on what our "active users" count looks like. drupal 7 + services 3 - inserting nodes with select fields I'm using Drupal 7 + Services 3 to create nodes with POST and JSON. Everything works fine, except field types of select - entity reference select or plain text.  The entity reference uses the autocomplete widget, while the text select is a plain radio button.  This is the format I'm using:  "field_urgency": {     "und": [  {  "value": 1    }   ] } Implementation of "show" for function Langage to declare a circuit board Optional argument to \item I am typesetting an ordered list where the entries may appear out of order, but should be assumed in order otherwise. I don't want to have to jump through \setcounter hoops to do this. That is, I want something like  \begin{enumerate}   \item First   \item Second   \item[8] Eighth!   \item Ninth!   \item[4] Fourth \end{enumerate}   to give the following Good output, instead of the Bad output:    A minimum working example follows.  \documentclass{article} \usepackage{enumitem} % preferably something compatible with this guy \begin{document}  Good:  \begin{enumerate}   \item[1.] First   \item[2.] Second   \item[8.] Eighth!   \item[9.] Ninth!   \item[4.] Fourth \end{enumerate}  Bad:  \begin{enumerate}   \item First   \item Second   \item[8] Eighth!   \item Ninth!   \item[4] Fourth \end{enumerate}  \end{document}   It should be noted that I don't want to have to specify the period afterwards, in case my list using a different numbering, e.g. Roman. Compatibility with enumitem is preferred, but not required.  What is the correct way of going about this? Equation number in aligned environment after last line I'm using aligned inside align as follows   \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} x =&22+2 \nonumber\\   =& \begin{aligned}[t]     &5+3\\     &-3+4\\     &+15-0   \end{aligned} \end{align} \end{document}   I want to have just one equation number after the very last line.  However, I'm getting the number at the beginning of the first split line (after the second = ),    and I cannot figure out how to move this equation number to the bottom. Any help will be appreciated. "How" vs. "that" in "You know how we have pizza on Thursdays, right?" From time to time I hear sentences like this:      You know how we have pizza on Thursdays, right?   Here, how doesn't mean exactly how those guys eat pizza, it is something like "that" in this context.   So what is the difference between using how, that or just skipping the conjunction? Remove .php extension with .htaccess Started new job. Rollover previous employer 401k to new 401k, IRA or Roth IRA? I recently started a new job and have a 401k from my previous employer that I don't know what to do with.  Should I roll it into my new employer's 401k, a traditional IRA or a Roth IRA? How can I compile, run and decompile C# code in Ubuntu terminal? What is the penalty for dual US citizens who lie on the ESTA form in order to enter under VWP using their second passport? When is a function satisfying the Cauchy-Riemann equations holomorphic? It is, of course, one of the first results in basic complex analysis that a holomorphic function satisfies the Cauchy-Riemann equations when considered as a differentiable two-variable real function. I have always seen the converse as: if $f$ is continuously differentiable as a function from $U \subset \mathbb{R}^2$ to $\mathbb{R}^2$ and satisfies the Cauchy-Riemann equations, then it is holomorphic (see e.g. Stein and Shakarchi, or ). Why is the $C^1$ condition necessary? I don't see where this comes in to the proof below.   Assume that $u(x,y)$ and $v(x,y)$ are continuously differentiable and satisfy the Cauchy-Riemann equations. Let $h=h_1 + h_2i$. Then \begin{equation*} u(x+h_1, y+h_2) - u(x,y) = \frac{\partial u}{\partial x} h_1 + \frac{\partial u}{\partial y}h_2 + o(|h|) \end{equation*} and  \begin{equation*} v(x+h_1, y+h_2) - v(x,y) = \frac{\partial v}{\partial x} h_1 + \frac{\partial v}{\partial y} h_2 + o(|h|). \end{equation*} Multiplying the second equation by $i$ and adding the two together gives  \begin{align*} (u+iv)(z+h)-(u+iv)(z) &amp;= \frac{\partial u}{\partial x} h_1 + i \frac{\partial v}{\partial x} h_1 + \frac{\partial u}{\partial y} h_2 + i \frac{\partial v}{\partial y} h_2 + o(|h|)\\\  &amp;= \left( \frac{\partial u}{\partial x} + i \frac{\partial v}{\partial x} \right) (h_1+i h_2) + o(|h|). \end{align*}  Now dividing by $h$ gives us the desired result.   Does there exist a differentiable but not $C^1$ function $f: U \rightarrow \mathbb{R}^2$ which satisfies the Cauchy-Riemann equations and does NOT correspond to a complex-differentiable function?