Linux

Linux is a Unix-like and mostly POSIX-compliant computer operating system (OS) assembled under the model of free and open-source software development and distribution.

The purpose of this page is provide practical resources to student to understand and use Linux.

Tools you can use to manage different parts of the Linux operating system:

The OS manages	Linux tools you can use to understand what is going on
Memory	top, htop, free, vmstat
Processes	top
Files	File system, df, du, mount, lsof
Security	fstab
CPU Scheduling	perf
Devices, Device I/O	iotop, iostat
Interrupts	perf
The user interface, most often a GUI but also a CLI	we dont really monitor this
Networks	netstat, top, tcpdump, iptraf, iftop, nmon

Click here for a brilliant graphic showing the different types of tools you can use to view inside the Linux operating system

Do you understand this topic?

• Describe the main functions of an operating system.

Do you have an advanced understanding about this topic?

• Describe how an operating system manages the functions you have just described above.

a group or system of interconnected people or things.

Give a detailed account or picture of a situation, event, pattern or process.