Whats the easiest way to ensure folder exist before I do a File.Move?
How do I create directory if it doesn't exist to create a file?
I know $[0,1]$ denotes the interval between 0 and 1 with the boundary. And $(0,1)$ denotes the interval between 0 and 1 without the boundary. Today, I encounter some expressions as $]0,1]$, $]-\infty,+\infty]$. What does $]0,1]$ mean? Thanks. Everybody who is using Lightroom probably has seen this. After importing RAW files, Lightroom shows a preview, but contrast and color of the preview change after a few short seconds to a slightly different view.  For some users the change is small, for others the change is huge. Colors are different (read: wrong), contrast is off.  Rumor says this is happening only (more?) for Nikon users.  What is Lightroom doing here?  I'd guess that for the first preview, LR is showing the JPG preview file, which is embedded in the RAW file. Then after a moment, LR renders the RAW file itself to show it's own interpretation.  But why is this interpretation so different from the embedded JPG? Exporting Data From Salesforce - REST or SOAP? If $f^2$ is Riemann Integrable is $f$ always Riemann Integrable? Eclipse: How to build an executable jar with external jar? I am trying to build an executable jar program which depends on external jar downloaded. In my project, I included them in the build path and can be run and debug within eclipse.  When I tried to export it to a jar, I can run the program but I can't when I try to press a button which includes function calls and classes from the external jar. I have edited the environment variables (Windows XP) CLASSPATH to include paths of all the external jar, but it doesn't work.  A point to note is that I got compile warnings while exporting my executable jar, but it doesn't show up any description about the warnings.  Would someone kindly provide a thorough guide on how to include an external jar program using eclipse? I am doing some challenges. This is one them. I am trying to brute-force 4 digit pin with the password to get my desired answer. After connecting to the port It prompts me to enter the password then space then 4 digit pin. I tried to brute-force the pin using the script:  #!/bin/bash   nc localhost 30002   sleep 2    for i in {0000..9999};       if [[ $(echo 'UoMYTrfrBFHyQXmg6gzctqAwOmw1IohZ $i' &lt;/dev/stdin) = ^Wrong*]];                         then          continue       echo '[+] Pincode Cracked! Pincode = $i'       fi   done  but it seems that this doesn't input the pass and pin to stdin, before i tried doing something like this -&gt; if [[ $(echo 'UoMYTrfrBFHyQXmg6gzctqAwOmw1IohZ $i') = ^Wrong* ]]; What am I doing wrong here? UPDATE: Okay, so after researching around. I wrote this: for i in {0000..9999} do     if [ (echo &quot;UoMYTrfrBFHyQXmg6gzctqAwOmw1IohZ $i&quot; | nc localhost 30002 | grep -o Wrong) == &quot;Wrong&quot; ]    then       sleep 0.1       continue    fi    echo &quot;- - - - - - - - - - - - - - - - - - - - - - - - [$i]&quot; done  This might even work but as you can see it opens new connections in the loop which makes it really slow and exhaust the system. Centos7 can't boot with shim-x64-15-7.el7_9.x86_64 The floowing is serial console output: BdsDxe: starting Boot0003 &quot;CentOS Linux&quot; from HD(1,GPT,A51EC18C-6831-4D47-B93E-B20DBC3F30BF,0x800,0x64000)/\EFI\centos\shimx64.efi  UEFI: Attempting to start image. Description: CentOS Linux FilePath: HD(1,GPT,A51EC18C-6831-4D47-B93E-B20DBC3F30BF,0x800,0x64000)/\EFI\centos\shimx64.efi OptionNumber: 3.  !!!! X64 Exception Type - 0D(#GP - General Protection)  CPU Apic ID - 00000000 !!!! ExceptionData - 0000000000000000 RIP  - 00000000BF2E5D5C, CS  - 0000000000000038, RFLAGS - 0000000000010006 RAX  - 00000000BFF5FE50, RCX - 000000000000001F, RDX - 00000000BFF31F28 RBX  - 00000000BF352FB0, RSP - 00000000BFF31E50, RBP - 00000000000023C0 RSI  - 00000000BFF31F28, RDI - 0000000000000068 R8   - 00000000BDB8C018, R9  - 000000000000211E, R10 - 00000000BDC6C010 R11  - 00000000BFF31E9A, R12 - 00000000BE791068, R13 - 00000000BF339018 R14  - 00000000BEE21018, R15 - 0000000000000068 DS   - 0000000000000030, ES  - 0000000000000030, FS  - 0000000000000030 GS   - 0000000000000030, SS  - 0000000000000030 CR0  - 0000000080010033, CR2 - 0000000000000000, CR3 - 00000000BF401000 CR4  - 0000000000000668, CR8 - 0000000000000000 DR0  - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000 DR3  - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400 GDTR - 00000000BF3EEA98 0000000000000047, LDTR - 0000000000000000 IDTR - 00000000BEE1F018 0000000000000FFF,   TR - 0000000000000000 FXSAVE_STATE - 00000000BFF31AB0 !!!! Find image based on IP(0xBF2E5D5C) /build/work/af60adde42b1d1ad5be2a01e4924bb905248/google3/blaze-out/k8-opt/genfiles/third_party/edk2/ovmf_x64_csm_debug_workspace_dir/ovmf_x64_csm_debug_edk2_files_dir/Build/OvmfX64/DEBUG_CLANG38/X64/OvmfPkg/8254TimerDxe/8254Timer/DEBUG/Timer.dll (ImageBase=00000000BF2E4000, EntryPoint=00000000BF2E5AB5) !!!! I changed my Blender Units to Metric System, but when I'm building things, my meshes are transparent, i.e. I can see through faces like in wireframe even though my wireframe is turned off. All faces have a light white in non-wireframe mode, but I can still see through them.   How do I reverse this?  Another issue I get is this    Looks like clipping is not working properly. Can't we compute $\lim_{n \to \infty}\frac{1+ \cdots +n}{n^2}=\lim_{n\to\infty}\frac{1}{n^2}+\cdots +\lim_{n\to\infty}\frac{n}{n^2}=0$? If I remote wipe my iPhone, can I still locate it remotely? If I lose my iPhone, and I use remote wipe to prevent my confidential data from being stolen, then can I still use Find My iPhone to locate it on a map?  I'm assuming not (since it resets to factory settings), but I wanted to double-check. How to prove a cross is not locally homeomorphic to an euclidean space? Consider the subset $X = \{(x, 0) \mid -1 \lt x \lt 1\} \cup \{(0, y) \mid -1 \lt y \lt 1\} \subset \Bbb R^2$. It's just two open segments intersecting at $(0, 0)$.  How do you show that $X$, equipped with the subspace topology of $(\Bbb R^2, \lvert \lvert \cdot \rvert \rvert_2)$, is not locally homeomorphic to an euclidean space because of the point $(0, 0)$ ? Moving a very large (40 TB) DB from a 2008 server to a 2016 server Why does Earth behave like Natural Bar Magnet? What is the reason for the Earth to behave like a bar magnet and have poles (North and South poles)? I just wanted to know how to add "create node form" in a block  when i  copy the source code and make a block out of that code, only public could post from that. when i am posting as a user it says timeout and tells us to refresh the page. plz someone give me solution.  SO i tried to add the following code in page.tpl.php  $form = node_add('nodetype'); print drupal_render($form); How do you refer to a hyponym that is the same word as the hypernym? What word (or how do you phrase things) do you use when the ostensible word for the class is the same as the word for a subset of the class?  For example, in the United States, there are many brands of sugared, carbonated soft drink that one can buy: Coca-Cola (or Coke), Pepsi, RC Cola, Sprite, 7-Up, A&amp;W or Mug Root Beer, etc). The first two are kinds of 'coke' or 'cola' (but no one says 'cola').  , one asks for any type of such drink as 'coke'. How does one then ask for the particular kind of 'coke' that is 'Coke' (pronounced the same)? Does one reduplicate and say a 'Coke coke', does one repeat with emphasis (or without), does one use a different word like 'coca-cola' (co-cola), or what?  The (perceived) difficulty (surely those in the South are able to get the drink they want somehow) isn't limited to there. Where the drink is called 'soda', if you ask for a 'coke', you'll still sometimes have the choice among Coca-Cola, Pepsi, etc. "Can I have a Coke?" the response might be "Is Pepsi OK?". "Sure, Pepsi, Coke, whatever." You don't use 'cola', you just ask for the particular kind and hope the listener will help differentiate.   Given these multiple strategies for disambiguating, what do you do say to get a 'Coke' in the southern US? are there any other examples of a hypernym being the same as the hyponym, and so creating a disambiguation problem? What are Extension Methods? What are extension methods in .NET?    EDIT: I have posted a follow up question at Monotonicity of the sequences $\left(1+\frac1n\right)^n$, $\left(1-\frac1n\right)^n$ and $\left(1+\frac1n\right)^{n+1}$ "To work for" vs. "to work in" vs. "to work at" Is the preposition in universal in conjunction with the verb ‘to work’ and can it be used with any organizations and businesses?  For example:        He works as a cook in a local hotel near here.   He works in an office in Chicago.   She works in a big company.   She works in the emergency unit at the hospital.   She works in a shoe repair shop.   After leaving school, he worked in a restaurant for a year. military hospital.   His sister works in a bank.   She works in a shoe factory.   He works in a steel plant.   She works in a gift store on weekends.   Ann works in a research institute.      When should the prepositions at and for be used? For example:        Barbara works at a travel agency.   She works at the local supermarket.   Now he works for a bank.   I work for a small non-profit organization.      I’ve never heard:     She works for a shoe factory.   But with a law firm it’s OK:     She works for a law firm.   Why? Why does the (relativistic) mass of an object increase when its speed approaches that of light? I'm reading Nano: The Essentials by T. Pradeep and I came upon this statement in the section explaining the basics of scanning electron microscopy.     However, the equation breaks down when the electron velocity approaches the speed of light as mass increases. At such velocities, one needs to do relativistic correction to the mass so that it becomes[...]   We all know about the famous theory of relativity, but I couldn't quite grasp the "why" of its concepts yet. This might shed new light on what I already know about time slowing down for me if I move faster.  Why does the (relativistic) mass of an object increase when its speed approaches that of light? Indefinite integral $\int(\sin x)^2/(x\cdot\cos x-\sin x)^2\,dx$ How to find the antiderivative of $\dfrac{(\sin x)^2}{(x\cdot\cos x-\sin x)^2}$? I know that series theory can solve the problem. But I wish to solve the problem by the antiderivative way. The numerator and denominator divide the $x^2$ at the same time, don't they?