Feature on Linux For Free

Free and top are built-in Linux commands used to get detailed reports on a system's memory usage. These commands are often misinterpreted by users because neither is very clear about what it actually measures.

The free() function in C is used to free or deallocate the dynamically allocated memory and helps in reducing memory wastage. The C free() function cannot be used to free the statically allocated memory (e.g., local variables) or memory allocated on the stack.

Linux is a family of open-source operating systems. They are based on the Linux kernel and are free to download. They can be installed on either a Mac or Windows computer.

Features of Linux Open-source. One of the most important features of Linux is that it is open-source software. ... Free. Another important features of Linux is that it is free to use. ... Customizable. ... Security. ... Stability. ... Performance. ... Multi-user support. ... Command-line interface.

A free command can display the total amount of free and used physical memories, and swap memory in the system, as well as the buffers that used by the kernel. Just type free -g , this will show you the total, used, and free memory. free displays amount of free and used memory in the system.

One of the reasons Linux is protected ? albeit not immune ? to viruses is because it offers user privileges backed into the OS. Linux features a multi-user environment. Each user is given a specific level of privileges.

What is the 'free' command? The free command is a Linux command that allows you to check for memory RAM on your system or to check the memory statics of the Linux operating system.

In the UNIX world (including: Linux, BSD and probably MacOS, iOS and Android) the ?free memory? is memory which is literally doing nothing whatever right now. But ?available memory? is memory that you can use - but may require the operating system to free something up in order to give it to you.