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How can I match a string with a regex in Bash?
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To match regexes you need to use the =~ operator.
Try this:
[[ sed-4.2.2.tar.bz2 =~ tar.bz2$ ]] && echo matched
Alternatively, you can use wildcards (instead of regexes) with the == operator:
[[ sed-4.2.2.tar.bz2 == *tar.bz2 ]] && echo matched
If p...
Deleting all files from a folder using PHP?
For example I had a folder called `Temp' and I wanted to delete or flush all files from this folder using PHP. Could I do this?
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from jquery $.ajax to angular $http
I have this piece of jQuery code that works fine cross origin:
4 Answers
4
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Mongoose indexing in production code
Per the Mongoose documentation for MongooseJS and MongoDB / Node.js :
3 Answers
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How to handle multiple heterogeneous inputs with Logstash?
...) in the filter and output definitions which should cut down on the extra formatting within the config file a bit. Example: gist.github.com/fairchild/3030472 Per documentation: Add a 'type' field to all events handled by this input. Types are used mainly for filter activation. The type is stored ...
A Regex that will never be matched by anything
...ion is expensive -- it will scan the entire line, find the end-of-line anchor, and only then not find the a and return a negative match. (See comment below for more detail.)
* Originally I did not give much thought on multiline-mode regexp, where $ also matches the end of a line. In fact, it woul...
How do I execute a Git command without being in the repository?
Is there a way to execute Git commands against a repository without being in that repository?
6 Answers
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What is the 'dynamic' type in C# 4.0 used for?
... called 'dynamic'. It all sounds good, but what would a programmer use it for?
10 Answers
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What is the use of “assert” in Python?
... telling the program to test that condition, and immediately trigger an error if the condition is false.
In Python, it's roughly equivalent to this:
if not condition:
raise AssertionError()
Try it in the Python shell:
>>> assert True # nothing happens
>>> assert False
Trac...
How can I have a newline in a string in sh?
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The solution is to use $'string', for example:
$ STR=$'Hello\nWorld'
$ echo "$STR" # quotes are required here!
Hello
World
Here is an excerpt from the Bash manual page:
Words of the form $'string' are treated specially. The word expands to
string, w...