How to check the JDK version of a class file
When running a Java application it is mandatory that the JRE version to match or to be higher that the JDK version used to compile the application.
You will get the "Unsupported major.minor version 52.0" error when trying to run an Java 1.8 application using a lower version of Java.
How to fix apt lock-frontend error in Ubuntu
How to fix the E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) error.
How to find all files containing a text string on Linux
How to find all files containing a text string on Linux using grep command with exclude/include parameter.
Stop WordPress asking for FTP details
WordPress is a free and open-source content management system (CMS) based on PHP and MySQL.WordPress is the most popular blogging system in use on the Web.
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