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How to check if a file contains a specific string using Bash
...ant to check if a file contains a specific string or not in bash. I used this script, but it doesn't work:
11 Answers
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What is an example of the Liskov Substitution Principle?
I have heard that the Liskov Substitution Principle (LSP) is a fundamental principle of object oriented design. What is it and what are some examples of its use?
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What is opinionated software?
I often see people saying that certain software is "very opinionated" or that Microsoft tends to write "un-opinionated" frameworks. What does this actually mean?
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Why use static_cast(x) instead of (int)x?
...function should be preferred to C-style or simple function-style casting. Is this true? Why?
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What is the most efficient Java Collections library? [closed]
What is the most efficient Java Collections library?
12 Answers
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What does O(log n) mean exactly?
...are that:
the choice of the next element on which to perform some action is one of several possibilities, and
only one will need to be chosen.
or
the elements on which the action is performed are digits of n
This is why, for example, looking up people in a phone book is O(log n). You don't n...
What is the C runtime library?
What actually is a C runtime library and what is it used for? I was searching, Googling like a devil, but I couldn't find anything better than Microsoft's: "The Microsoft run-time library provides routines for programming for the Microsoft Windows operating system. These routines automate many commo...
When to use an interface instead of an abstract class and vice versa?
This may be a generic OOP question. I wanted to do a generic comparison between an interface and an abstract class on the basis of their usage.
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Why / when would it be appropriate to override ToString?
...t in another way? Yes.
But by using ToString you are using a method that is common to all objects and thus other classes know about this method. For instance, whenever the .NET framework wants to convert an object to a string representation, ToString is a prime candidate (there are others, if you ...
Is it safe to use -1 to set all bits to true?
I've seen this pattern used a lot in C & C++.
20 Answers
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