How to Check the PostgreSQL Version
PostgreSQL, often known simply as Postgres, is an open-source general-purpose object-relational database management system. Knowing what version of the…
PostgreSQL, often known simply as Postgres, is an open-source general-purpose object-relational database management system. Knowing what version of the…
Python is one of the most popular programming languages in the world. It is used for developing websites, writing…
When troubleshooting network connectivity or application-specific issues one of the first things to check should be what ports are…
MySQL (and its drop-in replacement MariaDB) is the most popular open-source relational database management system. There are some important…
One of the most common operations when working with strings in Bash is to determine whether or not a…
Whether you are troubleshooting network connectivity issues or configuring a firewall one of the first things to check is…
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When writing Python scripts, you may want to perform a certain action only if a file or directory exists…
When people refer to Linux, they are usually referring to a Linux distribution. Strictly speaking, Linux is a kernel,…
Many times when writing Shell scripts, you may find yourself in a situation where you need to perform an…
How much space do I have left on my hard drive? Is there enough free disk space to download…
When you log in to a Debian Linux system for the first time, before doing any work it is…
When you log in to a CentOS machine for the first time, before doing any work you might want…
When you log in to an Ubuntu system for the first time, before doing any work, it is always…