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How can I use grep to show just filenames on Linux?

... The standard option grep -l (that is a lowercase L) could do this. From the Unix standard: -l (The letter ell.) Write only the names of files containing selected lines to standard output. Pathnames are written once per fi...
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Sort hash by key, return hash in Ruby

Would this be the best way to sort a hash and return Hash object (instead of Array): 10 Answers ...
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What is InputStream & Output Stream? Why and when do we use them?

Someone explain to me what InputStream and OutputStream are? 8 Answers 8 ...
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from jquery $.ajax to angular $http

...ethod) AngularJS will take care of converting JS objects into JSON string and setting headers (those are customizable) Callback functions are named success and error respectively (also please note parameters of each callback) - Deprecated in angular v1.5 use then function instead. More info of the...
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How to exit a function in bash

...pecified by N. If N is omitted, the return status is that of the last command executed within the function or script. Exit Status: Returns N, or failure if the shell is not executing a function or script. share ...
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Check for changes to an SQL Server table?

...of the database in any way? My preferred programming environment is .NET and C#. 8 Answers ...
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What exactly does Perl's “bless” do?

I understand one uses the "bless" keyword in Perl inside a class's "new" method: 8 Answers ...
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How to get last key in an array?

... A solution would be to use a combination of end and key (quoting) : end() advances array 's internal pointer to the last element, and returns its value. key() returns the index element of the current array position. So, a portion of code such as this one should do th...
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What is the type of lambda when deduced with “auto” in C++11?

...o a functor. Anything inside the [] are turned into constructor parameters and members of the functor object, and the parameters inside () are turned into parameters for the functor's operator(). A lambda which captures no variables (nothing inside the []'s) can be converted into a function pointer...
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Nginx location priority

...hes any query, since all queries begin with /, but regular # expressions and any longer conventional blocks will be # matched first. [ configuration B ] } location /documents/ { # matches any query beginning with /documents/ and continues searching, # so regular expressions will be checke...