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How can I get the current user's username in Bash?

...minal (ignores EUID) $USER variable is set correctly only after reading profile files (for example, /etc/profile) share | improve this answer | follow | ...
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document.getElementById vs jQuery $()

...n which I have extensively used $('#someID') and my page runs slow for big file inputs. Please suggest me what should be my move. – Mazhar MIK Mar 11 '19 at 5:51 ...
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What are the applications of binary trees?

...lized image-signatures in which a hash needs to be verified, but the whole file is not available. Heaps - Used in implementing efficient priority-queues, which in turn are used for scheduling processes in many operating systems, Quality-of-Service in routers, and A* (path-finding algorithm used in A...
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Android splash screen image sizes to fit all devices

...mpromising the end result With this, Android will select the appropriate file for the device's image density, then it will stretch the image according to the 9-patch standard. end of tl;dr. Full post ahead I am answering in respect to the design-related aspect of the question. I am not a develop...
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Why does the C++ STL not provide any “tree” containers?

...require a tree is, IMO, another argument for having an stl::red_black_tree etc. Finally, the std::map and std::set trees are balanced, an std::tree might not be. – einpoklum Jul 26 '16 at 15:59 ...
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How do I get the first element from an IEnumerable in .net?

...ver. An Erumerator could close connection to the Database, fush and close file handle, release some locked objects, etc. Not disposing an enumerator of some integer list won’t be harmfull, I guess. – Mouk Jan 31 '09 at 13:24 ...
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How to install therubyracer gem on 10.10 Yosemite?

...3-x86_64-darwin-12.gem #note that libv8 version may change, so tab through files in pkg/, also remember to use the one with version specified then just bundle your project gems this is the only way it worked for me on 10.10 (ruby 2.1.2) ...
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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...控最大连接数。 服务端还需要调整一下系统的参数,在/etc/sysctl.conf中: net.core.somaxconn = 2048 net.core.rmem_default = 262144 net.core.wmem_default = 262144 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 4096 16777216 ...
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How does “do something OR DIE()” work in PHP?

... case of errors. Please, correct me if I'm wrong, but if you do func_call($file) or die(); and the function fails, then the file is left open when the scripts dies. – pedromanoel Nov 27 '12 at 11:06 ...
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How to attribute a single commit to multiple developers?

...Pivotal to automate Git pair programming attribution. You create a .pairs file like: # .pairs - configuration for 'git pair' pairs: # <initials>: <Firstname> <Lastname>[; <email-id>] eh: Edward Hieatt js: Josh Susser; jsusser sf: Serguei Filimonov; serguei email: ...