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Linux 101: Core concepts and Commands
I’m preparing for CKAD certification. Preparing notes for revision, referring KodeKloud.
Linux Kernel
Kernel is a major components of an operating System and a core interface between a computers hardware and its processes. It communicates between the two managing resources as efficiently as possible.
Linux kernel is monothlic means that kernel carries out CPU scheduling, memory management and several other operations by itself.
Let us look at kernel versions and understanding naming convention.
Linux commands:
uname Display the info of Kernel
uname -r : Display info of kernel with version.
Here,
- 4: Kernel Version
- 15 Major Version
- 0: Minor Version
- 72: Patch Release
- generic: Distro Specific Info
Opening a /etc/os-release file help to see the version of Operating system.
cat /etc/os-release
Hardware related commands:
dmesg: used to display message from an area of kernel called as ring buffer. Linux…
