Is there Linux command help available during CKA exam

shishir30 · December 27, 2023, 2:58pm

Hi,

I know linux to an extent but since it is not an OS I have to use everyday, it becomes hard to remember all the commands and switches. I know I can use “man ” or “ --help” to know more about them which is OK but I am struggling to get help on the vi editor commands within the linux terminal.
VI editor is going to be used heavily during CKA exam and this editor uses a lot of commands followed by esc or : or / and it is hard for me to remember all the useful switches.
I cannot find a way to list these useful vi editor commands from within the linux terminal so wondering if they are available somewhere on the kubernetes documentation page or during the CKA exam, do they allow a print of some useful commands as such?
If not, any other tips someone could suggest to remember the most useful commands for the vi editor.

Alistair_KodeKloud · December 27, 2023, 3:04pm

You are allowed to use the Linux man command to get help on Linux commands from the terminal.
You are not allowed to browse command documentation in the terminal’s Firefox except for Kubernetes documentation.

It is best to learn (and practice in the labs) useful vi commands.

github.com

kodekloudhub/community-faq/blob/main/docs/vi-101.md

# vi-101

**IMPORTANT** - The `vimium` chrome extension is known to cause issues with using vi in lab terminals due to the fact that it intercepts the keystrokes that the vi editor is expecting. The whole point of this extension is to use vi commands to drive the browser itself, therefore the vi inside the browser will never receive the commands!</br>If you have this extension, please disable it.

Real simple guide to the most important stuff with `vi` editor and questions commonly asked

* [I cannot type anything!](#i-cannot-type-anything)
* [I cannot exit vi](#i-cannot-exit-vi)
* [Modes](#modes)
* [Most useful normal mode commands](#most-useful-normal-mode-commands)
    * [Files](#files)
    * [Editing](#editing)
* [Suggested settings for YAML editing](#suggested-settings-for-yaml-editing)

# I cannot type anything!

Probably the first time you've used `vi` right? When you start the editor, it is in what is known as `normal` mode, which is a command entry mode. Certain keystrokes will be interpreted as commands, others may be ignored. What won't be happening is text is being typed into the editor.

To begin editing, you must enter `insert` mode, by typing `i`. If you've typed some other keys in confusion, this may not work immediately. Press `ESC` then press `i`. The bottom line of the editor should read `--INSERT--`. Now you can edit stuff.

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