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How to create a temporary directory/folder in Java?
Is there a standard and reliable way of creating a temporary directory inside a Java application? There's an entry in Java's issue database , which has a bit of code in the comments, but I wonder if there is a standard solution to be found in one of the usual libraries (Apache Commons etc.) ?
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Automatically capture output of last command into a variable using Bash?
...e to use the result of the last executed command in a subsequent command. For example,
22 Answers
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A semantics for Bash scripts?
More than any other language I know, I've "learned" Bash by Googling every time I need some little thing. Consequently, I can patchwork together little scripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programmin...
Error in exception handler. - Laravel
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The safer option would be to change the group of the storage directories to your web servers group (usually apache or www-data, but this can vary between the different operating systems) and keep the permissions as of the directory as 775.
chgrp -R www-data app/storage
Or with...
In what order do static/instance initializer blocks in Java run?
...ns several classes, each of which has a static initializer block. In what order do those blocks run? I know that within a class, such blocks are run in the order they appear in the code. I've read that it's the same across classes, but some sample code I wrote disagrees with that. I used this co...
CATALINA_OPTS vs JAVA_OPTS - What is the difference?
...OPTS - which are both used in the catalina.sh startup and shutdown script for Tomcat. They are described in comments within that file as:
[JAVA_OPTS]: (optional) Java runtime options used when the "start", "stop" or "run"
command is executed
and
[CATALINA_OPTS]: (optional) Java runtime ...
Check if pull needed in Git
How do I check whether the remote repository has changed and I need to pull?
24 Answers
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What's the difference between Sender, From and Return-Path?
...omeone else.
The Return-Path header is used to indicate to the recipient (or receiving MTA) where non-delivery receipts are to be sent.
For example, take a server that allows users to send mail from a web page. So, sender@yourcompany.com types in a message and submits it. The server then sends...
How to redirect to a dynamic login URL in ASP.NET MVC
I'm creating a multi-tenancy web site which hosts pages for clients. The first segment of the URL will be a string which identifies the client, defined in Global.asax using the following URL routing scheme:
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How to Deep clone in javascript
...t really depends what you would like to clone. Is this a truly JSON object or just any object in JavaScript? If you would like to do any clone, it might get you into some trouble. Which trouble? I will explain it below, but first, a code example which clones object literals, any primitives, arrays a...