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What is /dev/null 2>&1?

... & indicates a file descriptor. There are usually 3 file descriptors - standard input, output, and error. – Testing123 Sep 15 '17 at 17:22 ...
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Regarding 'main(int argc, char *argv[])' [duplicate]

...t wrong than the minimum possible value of argc is 1 and argv[0] holds the string ./mymainprogram whereas argv[1] is NULL. My questions are- 1: What is the maximum value that argc can hold? 2: What are these strings that are added to the argv[]? – phougatv Ja...
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Nginx reverse proxy causing 504 Gateway Timeout

...ed just fine: server { location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $http_host; proxy_http_version 1.1; proxy_set_header Connection ""; proxy_pass http://localhost:5000; } } Have a look at this posts which exp...
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phpcms与ucenter整合常见问题与解答 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...$member['password']; $email = $member['email']; $ip = $_SERVER['REMOTE_ADDR']; $time = time(); $userdata = array( 'uid'=>$uid, 'username'=>$username, 'password'=>$password, 'email'...
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Is Java really slow?

...on Java still has a bad reputation, especially server-side. This makes the String problems exponentially worse. Some simple mistakes are common: objects are often used in place of primitives, reducing performance and increasing memory use. Many Java libraries (including the standard ones) will creat...
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How do I remove diacritics (accents) from a string in .NET?

I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee ) ...
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Strings as Primary Keys in SQL Database [closed]

... slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers? 15 Ans...
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How to find a Java Memory Leak

...jects to stick in memory"? I see very general things like int[], Object[], String, etc. How do I find where they come from? – Vituel Apr 19 '17 at 14:49 add a comment ...
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SQL Server: Make all UPPER case to Proper Case/Title Case

... = 1, @i = 1, @Ret = ''; while (@i <= len(@Text)) select @c = substring(@Text, @i, 1), @Ret = @Ret + case when @Reset = 1 then UPPER(@c) else LOWER(@c) end, @Reset = case when @c like '[a-zA-Z]' then 0 else 1 end, @i = @i + 1 return @Ret end You will still have to use...
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Meaning of acronym SSO in the context of std::string

...ral answers referred to "SSO" in the context of optimizing copies of std::string . What does SSO mean in that context? 3 A...