Linux Resources

Install "exa" on Linux Mint 20 - Best Method ?

This article covers how to install "exa" on your system and use it as a replacement for the "ls" command in Linux Mint 20. In fact, exa is a modern replacement for the venerable file-listing command-line program ls that ships with Unix and Linux operating systems, giving it more features and better defaults. It uses colours to distinguish file types and metadata. It knows about symlinks, extended attributes, and Git. And it’s small, fast, and just one single binary. Using this modern tool will simply allow you to visualize your files and directories in Linux in a much better way.

Install bpytop on Linux Mint 20 - Complete guide ?

This article covers how to install bpytop tool on a Linux Mint 20 system. In fact, BpyTop is a Linux command-line utility for resource monitoring. It shows usage and stats for processors, memory, disks, network, and processes. With this tool installed on your system, you can use it very efficiently for resource usage monitoring.

To check the version of Python running on your Linux distribution, type:

$ python3 --version

After installing Bpytop, you can start monitoring your Linux system resources by running the command below:

$ bpytop

Install GlassFish on CentOS 8 - A step by Step guide ?

This article covers how to install the GlassFish application server on CentOS 8. In fact, GlassFish allows developers to create enterprise applications that are portable and scalable, and that integrate with legacy technologies. Also, you will see the best way to define systemd services for running Glassfish server and firewall configurations. 

To Start and enable glassfish services, simply run the below command:

$ systemctl start glassfish.service
$ systemctl enable glassfish.service
To access Glassfish Server on CentOS / RHEL 8, simply browse the below URL to access Glassfish Admin Console, ignore the certificate warning or install it:

LDD Command in Linux - How it works ?

This article covers how to use ldd command and how to use in linux command line. In fact, the ldd is a command line tool that prints the shared library dependencies of an executable program or shared library. The ldd command can be useful when wanted to find missing dependencies.

List Loaded Kernel Module Using Lsmod Command - How it works ?

This article covers how to list loaded kernel modules using lsmod command. In fact, lsmod command nicely prints the contents of the /proc/modules. To list the currently loaded kernel modules, execute the below command:

$ lsmod

Python's map() Function - An Overview ?

This article covers how to use the map() function in Python. In fact, map() function returns a map object(which is an iterator) of the results after applying the given function to each item of a given iterable (list, tuple etc.). Sometimes you might face situations in which you need to perform the same operation on all the items of an input iterable to build a new iterable. The quickest and most common approach to this problem is to use a Python for loop. However, you can also tackle this problem without an explicit loop by using map().

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