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 where with its open and dynamic architecture we can create different type of operating systems...
Tmux is terminal multiplexer popular in Linux world. Tmux provides multiple windows in a single session. Tmux also have the ability to detach and run after disconnect and attach after connection. This is very useful for system administrators. Man Man page of tmux provides a lot of detailed features. To get more information man page of tmux can be used like below.
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$ man tmux |
Start Tmux Tmux is a terminal emulator...
Monitoring Linux systems is one of the most important of system administrators. There are a lot of different monitoring tools those provides different features. We will look in details those Linux system monitoring software in this tutorial. Top Top is most used, fast simple tool to monitor Linux system resources. It can be easily invoked like below. Top is provided by procps-ng package.
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$ top |
By default processes are sorted by...
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 this file into terminal
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$cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) |
CentOS is the distribution name 7 is major version number which is...
Awk is a stream type programming language. Awk can edit given text ant provided new text according to instructions. We will look popular usages of Awk in this tutorial. There are alternative awk implementations like below Nawk Gawk Awk Syntax Awk is line oriented so by default provided text is processed line by line. Awk is generally used to search a pattern and make actions against it. We can call...
Linux history is a function of the bash that provides previously issued commands with different options. In this tutorial we will look these options. Display History To simple list history providing history command is enough. History file is located in users home directory and named .bash_history for bash shell.
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$ history |
OR another way to display history in Linux. Keep in mind that this will display history without line numbers.
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$ cat ~/.bash_history |
...
