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Regular expression that matches valid IPv6 addresses
I'm having trouble writing a regular expression that matches valid IPv6 addresses, including those in their compressed form (with :: or leading zeros omitted from each byte pair).
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How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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Setting up FTP on Amazon Cloud Server [closed]
...at you already have an EC2 instance created and have associated an Elastic IP Address to it.
Step #1: Install vsftpd
SSH to your EC2 server. Type:
> sudo yum install vsftpd
This should install vsftpd.
Step #2: Open up the FTP ports on your EC2 instance
Next, you'll need to open up the F...
How do I activate a virtualenv inside PyCharm's terminal?
..."export ~/.bashrc" before this script.
– Raphaël Gomès
Jul 29 '16 at 10:00
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How can I download a specific Maven artifact in one command line?
... and I didn't touch the pluginRegistry. Thanks.
– Xiè Jìléi
Dec 14 '09 at 4:27
2
this "get" g...
What is a non-capturing group in regular expressions?
...1).
Let's try some substitutions now. Consider the following text:
Lorem ipsum dolor sit amet consectetuer feugiat fames malesuada pretium egestas.
Now, let's use this dumb regex over it:
\b(\S)(\S)(\S)(\S*)\b
This regex matches words with at least 3 characters, and uses groups to separate th...
How to test which port MySQL is running on and whether it can be connected to?
... I thought to be externally visible, it had to be the machine's own IP address and that 0.0.0.0 means the service is not available from anywhere. Do I have that wrong? I have a box running MySQL, the firewall has 3306 open from any IP address but MySQL is refusing the connection, I thought b...
Mysql adding user for remote access
...o connect remotely you have to have MySQL bind port 3306 to your machine's IP address in my.cnf. Then you have to have created the user in both localhost and '%' wildcard and grant permissions on all DB's as such . See below:
my.cnf (my.ini on windows)
#Replace xxx with your IP Address
bind-addre...
What causes java.lang.IncompatibleClassChangeError?
...a-based APIs 2: Achieving API Binary Compatibility" written by Jim des Rivières.
There are also some automatic tools to detect such changes:
japi-compliance-checker
clirr
japitools
sigtest
japi-checker
Usage of japi-compliance-checker for your library:
japi-compliance-checker OLD.jar NEW.jar
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Generate table relationship diagram from existing schema (SQL Server) [closed]
Is there a way to produce a diagram showing existing tables and their relationships given a connection to a database?
9 Ans...