Is there a way to get the overall list of all , together with the categories and history of each bang being introduced or modified?  For example, I've noticed a few months ago that one of my sites, , appears on the bang list.  However, today I've noticed that DuckDuckGo must have recently introduced the categories, as a two-level hierarchy, and I could only find my site on the first level "Tech", not on the second level "Programming" where I think it should belong as well, but I couldn't find out any more info (like whether it belongs to any second-level category at all, maybe even a more relevant one that I may have overlooked; I finally found it's at Sysadmin, but this involved a few too many manual attempts at listing each category individually).  Is there a way to see all DuckDuckGo bang sites, together with their categories?    I'm also curious when each site was added, possibly who added it, and, possibly an unrelated question, what's the procedure to modify it, if necessary?  For example, whoever added my site, appears to have restricted the search on it to symbol references (e.g., identifier search), whereas it is my expectations that most people would instead be interested in a full-text search.  (Also, any chance of getting any sort of search statistics?)  The question  is similar to this one, but while that question only asks for a list of bangs, this question is asking for a list of bangs with history and categories.
Recently I switched from Google to DuckDuckGo and so far I am very pleased with the experience. "The Internet" tells me that one of DuckDuckGo's best features is the possibility to directly search on specific pages using bangs (defined prefixes). E.g. search for "!so [duck-duck-go]" on DuckDuckGo to get duck-duck-go tagged questions on Stackoverflow.  I was searching for a comprehensive list of all available bangs, but the only thing I found was the official  wich offers a search box and categorized lists, but no complete list of all 7,447* bangs.  Is there a possibility to find all bangs without clicking through all the categories on the bang-page?    (*) by time of writing, 2015-12-15
zeros of a polynomial Given $P(z)=z^6+6z+10$, find how many roots are in each quadrant    I have already seen that $P(z)$ has six different roots, and that none of them are real or of the form $ki$, $k\in \Bbb R$. Since the coefficients of $P(z)$ are real, then it's roots are 3 conjugate pairs, and therefore the possibilities are limited to two.  Defining $f(z)=z^6$, $g(z)=z^6+6z+10$ and applying Rouche in $|z|&lt;2$, $|f(z)-g(z)|&lt;|f(z)|$ I get that all roots are contained in the disc, but how do I go about splitting them into the four quadrants? From what I know about this polynomial, finding zeros in one quadrant is enough to determine the rest, but I'm stuck trying to apply rouche to a quarter circle (basically I'm having trouble finding a suitable f and g) How would you count occurrences of a string (actually a char) within a string? I am doing something where I realised I wanted to count how many /s I could find in a string, and then it struck me, that there were several ways to do it, but couldn't decide on what the best (or easiest) was.  At the moment I'm going with something like:  string source = "/once/upon/a/time/"; int count = source.Length - source.Replace("/", "").Length;   But I don't like it at all, any takers?  I don't really want to dig out RegEx for this, do I?  I know my string is going to have the term I'm searching for, so you can assume that...  Of course for strings where length > 1,  string haystack = "/once/upon/a/time"; string needle = "/"; int needleCount = ( haystack.Length - haystack.Replace(needle,"").Length ) / needle.Length; My friend and i would like to translate Ubuntu. where should we start? where to find translation tools? In a multiple linear regression, why is it possible to have a highly significant F statistic (p&lt;.001) but have very high p-values on all the regressor's t tests?  In my model, there are 10 regressors. One has a p-value of 0.1 and the rest are above 0.9    For dealing with this problem see the . Change folder permissions and ownership I would like the user to have full rights on this folder (as well as all sub-directories and files in it):  ~/.blabla   currently owned by root.  I have found numerous posts (in this forum and elsewhere) on how to do this for files but I can't find a way to do it for whole folders. Show that $A_n$ is the kernel of a group homomorphism of $S_n \rightarrow \{−1,1\}$. Formula label outside of formula How can I lock a file using java (if possible) Android : Is there any alternative to listFile function (Android java.io.File.listFiles()) How to treat English questions which have code in a foreign language? I washed and dried my passport by mistake, do I need a new one? Around two years ago I washed and dried my passport by mistake at the laundry room. My ID, my old US student visa and my stamps from european countries are still readable but the pages are not "flat" anymore and the front cover is kind of erasing (some parts of the Brazil symbol is gone).   In April I'll travel to US for a conference, I'll need to get a new US visa (B1/tourism visa) but I'm worried if my passport is not "good to go" anymore because it was "washed and dried". Apparently there is an electronic chip in it and I don't know if it is still working.  Should I get a new passport or can I save some money and time and use this one? It expires only in 2019. IBM Slack links broken Does anyone know where I can find working Slack invite links to any of IBM's Slack pages? The Slack links on  are all broken. Thank you. Show lim sup (an) = lim inf (an) for increasing for increasing sequence of subsets. PHP: how do I copy a temp file upload to multiple places? Mean and variance of Squared Gaussian: $Y=X^2$ where: $X\sim\mathcal{N}(0,\sigma^2)$? What is the mean and variance of Squared Gaussian: $Y=X^2$ where: $X\sim\mathcal{N}(0,\sigma^2)$?  It is interesting to note that Gaussian R.V here is zero-mean and non-central Chi-square Distribution doesn't work.  Thanks. What does the leading semicolon in JavaScript libraries do? Macro with lstlisting inside I have been following  about using \NewDocuentCommand with lstlisting and the accepted answer is nice except it is too big and it doesn't quite work for me.   I came up with this example to test xparse:    \documentclass{article} \usepackage{xparse} \usepackage{listings}  \ExplSyntaxOn \NewDocumentCommand{\code}{m +v}{     \begin{lstlisting}[style=#1,numbers=none,xleftmargin=0.35cm,framesep=0mm]         #2     \end{lstlisting} } \ExplSyntaxOff  \begin{document}  \code{C}{ int x = 200; unsigned int y = 0; }  \end{document}   Like stated in the  I first used m as a normal parameter and then +v as a multiline verbatim parameter, but it fails. It looks like I am still missing something... In the addon ArchiMesh there is a Japaneses curtain feature, but, it looks straight and does not have the fold that I want in it. Is there an addon that can do this for me? If not, how can I make a curtain (like in the images below)? How to burn a Windows .iso to a USB device? We have previously determined that  or  can attune to magic items, but one of those is a sapient creature, and the other "always obeys your commands".  A paladin's steed (per the Find Steed spell) is also 'unusually intelligent' and falls within the score range for sapient creatures.  But what about a regular old animal? If my ranger has a wolf companion, can he make that wolf attune to, say, an Amulet of Health? According to the Beast Master archetype, a companion animal "obeys your commands as best it can".  Is spending an hour 'focused only on the item' (as required for attunement) something a beast can manage?  Or what if it's not an Animal Companion, but just a riding horse, a pet dog, a trained magpie?  I know, probably this is going to be down to the DM to determine, but is there any guidance we can use to help decide whether my cat can attune to an item, and whether rubbing it with catnip would help?