Linux, Windows, Security, Programming, Network Tutorials
CentOS is a Linux operating system or Linux distribution which is open source versions of the Red Hat Enterprise Linux or RHEL. CentOS is 100% compatible with the RHEL and most of the packages of the RHE provided by CentOS. CentOS Release History CentOS version numbers start from 3 where it was the clone of … Read more
Linux is mostly known with its distributions or distros but the reality is that Linux is just a kernel or core of the operating system. All user space and some of the operating space related tools are provided by distributions. We can actually call distribution as a operating system. Linux is very different from Windows … Read more
Tmux is a terminal multiplexer popular in Linux world. Tmux provides multiple windows in a single session. Tmux also has the ability to detach and run after disconnect and attach after connection. This is very useful for system administrators. What Is Tmux? Tmux is described as terminal multiplexer. This terms means a single terminal can … Read more
Monitoring Linux systems is one of the most important for system administrators. There are a lot of different monitoring tools that provide different features. We will look in detail those Linux system monitoring software in this tutorial. Start top Command The top is the most used, fast simple tool to monitor Linux system resources. It … Read more
CentOS, Fedora, Red Hat are similar distibutions. Actually Red Hat supports other distributions. In this case how can I get release version of CentOS, Red Hat, Fedora. It is ver easy actually. These distributions holds release version related information in their /etc/redhat-release file. So simple echoing will give release information. Get Release Information From redhat-release Simple print … Read more
Awk is a stream type programming language. Awk can edit given text ant provided new text according to instructions. We will look popular usages of Awk in this tutorial. There are alternative awk implementations like below Nawk Gawk Awk Syntax Awk is line oriented so by default provided text is processed line by line. Awk … Read more
Linux history is a function of the bash that provides previously issued commands with different options. In this tutorial we will look these options. Display History To simple list history providing history command is enough. History file is located in users home directory and named .bash_history for bash shell. $ history OR another way to … Read more