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What is the difference between a symbolic link and a hard link?
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Underneath the file system, files are represented by inodes. (Or is it multiple inodes? Not sure.)
A file in the file system is basically a link to an inode.
A hard link, then, just creates another file with a link to the same underlying inode.
When you delete a file, it removes one ...
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 ...
How do you convert an entire directory with ffmpeg?
How do you convert an entire directory/folder with ffmpeg via command line or with a batch script?
24 Answers
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How to avoid null checking in Java?
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This to me sounds like a reasonably common problem that junior to intermediate developers tend to face at some point: they either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they ten...
hasNext in Python iterators?
Haven't Python iterators got a hasNext method?
13 Answers
13
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Is there a difference between authentication and authorization?
...narios but I suppose it's not limited to that) and I was wondering whether or not there was a difference.
17 Answers
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
...ven string contains at least one character from each of the following categories.
3 Answers
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Versioning SQL Server database
...nt to get my databases under version control. Does anyone have any advice or recommended articles to get me started?
29 An...
Rename a file using Java
...om http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html
// File (or directory) with old name
File file = new File("oldname");
// File (or directory) with new name
File file2 = new File("newname");
if (file2.exists())
throw new java.io.IOException("file exists");
// Rename file (or di...
Accessing member of base class
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Working example. Notes below.
class Animal {
constructor(public name) {
}
move(meters) {
alert(this.name + " moved " + meters + "m.");
}
}
class Snake extends Animal {
move() {
alert(this...