Here at System Code Geeks we know how much you love books about system administration; we are geeks ourselves. After all, a geek that respects himself should always have his face in a book, he has to keep up with the latest technologies and developments. For this reason, we have decided to distribute 6 of our books for free. You ...

Bash is a command-line shell now available on all major operating systems, and it is the environment from which most developers can accomplish the majority of tasks for a system. Many of the commands that need to be executed to complete a task can be grouped together in a script to help avoid repetition when typing the commands. Furthermore, there’s ...

In this short guide, I’ll be reviewing the necessary information for how to manage services from the command line on Windows workstations and servers. It should also go without saying that “services” are an integral part of pretty much all computer systems. You should also be aware that “services” are sometimes referred to as daemons (pronounced “demons”), especially in various ...

In a previous article, I wrote about using pgbench to tune PostgreSQL. While I covered a very common tunable shared_buffers, there are many other tuning options that can be used to gain performance from PostgreSQL. Today’s article is going to cover one of those additional options. However, this tunable does not belong to PostgreSQL. Rather this tunable belongs to the ...

This is a Bash If-Then-Else Example. Sometimes you need to specify different courses of action to be taken in a shell script, depending on the success or failure of a command. The if construction allows you to specify such conditions. The following table shows an overview of the whole article: Table Of Contents 1. Introduction 2. Expressions used with if-then-else ...

In this article, we’ll review the necessary information for how to backup and restore information from a Microsoft Windows DHCP server database. Depending on how familiar you are with this procedure, you may or may not be aware that there’s more to it than just a simple “backup and restore the database”. Besides wanting a full copy of your database, sometimes ...

This is an If – Condition Example. Sometimes you need to specify different courses of action to be taken in a shell script, depending on the success or failure of a command. The if construction allows you to specify such conditions. The most compact syntax of the if command is: if TEST-COMMANDS; then CONSEQUENT-COMMANDS; fi The TEST-COMMAND list is executed, ...

This is an awk tutorial. The basic function of awk is to search files for lines or other text units containing one or more patterns. When a line matches one of the patterns, special actions are performed on that line. Programs in awk are different from programs in most other languages, because awk programs are “data-driven”. You describe the data ...

If you’ve ever managed workstation printer installations for a decent-sized Windows environment, you likely already know that it can be challenging at times. But if you’re just now gearing up for the first time to do some deeper management in this area, this article should prove to be very helpful! NOTE 1:  I’ve seen some very short, concise posts or ...

Have you ever needed to install printers on a workstation, and you thought to yourself, “If only I could quickly copy the installed printers from another PC, it would save me so much time!”? Well, today’s your lucky day! Microsoft has actually had a way of accomplishing this for many years (a separate utility named “Print Migrator”, which has since ...