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How to compare strings in Bash
...ant to do something when they don't match, replace = with !=. You can read more about string operations and arithmetic operations in their respective documentation.
Why do we use quotes around $x?
You want the quotes around $x, because if it is empty, your Bash script encounters a syntax error as ...
How to grep Git commit diffs or contents for a certain word?
... all commits where "word" was added or removed in the file contents (to be more exact: where number of occurences of "word" changed), i.e. search the commit contents, use so called 'pickaxe' search with
$ git log -Sword
In modern git there is also
$ git log -Gword
to look for differences whose...
Uncatchable ChuckNorrisException
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Getting the name of a child class in the parent class (static context)
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I know this question is really old, but for those looking for a more practical solution than defining a property in every class containing the class name:
You can use the static keyword for this.
As explained in this contributor note in the php documentation
the static keyword can...
Read lines from a file into a Bash array [duplicate]
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JQuery: How to call RESIZE event only once it's FINISHED resizing?
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How to extract custom header value in Web API message handler?
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Check if a table exists in Rails
I have a rake task that won't work unless a table exists. I'm working with more than 20 engineers on a website so I want to make sure they have migrated the table before they can do a rake task which will populate that respective table.
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Why is “final” not allowed in Java 8 interface methods?
...ce method with a default implementation, and a derived class can provide a more specific implementation. And because the design center was interface evolution, it was a critical design goal that default methods be able to be added to interfaces after the fact in a source-compatible and binary-compa...
How to detect the OS from a Bash script?
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