Lot to learn in Linux, recommendations on how to approach this?

[balenshah]

Been doing support since 2+ years. And still there is a lot of linux basics left to uncover.
I will list my weak points below:

• when sudo does and does not work
• rmdir vs rm
• HOME, PWD, USER environmental variables
• export, unset, PATH variable
• shopt
• inodes, inode limit, hardlink, softlink
• buffered vs unbufferred i/o
• lost+found directory meaning
• /etc/passwd, /etc/shadow, /etc/group differences
• useradd, pwd, password expiration, usermod, userdel, groupadd.
• advanced sudo configuration
• chmod numerical values meaning(I have been doing chmod 777 since forever or chmod u+x)
• umask
• sticky bit
• suid, sgid
• fg,bg, jobs, stty, nohup, wait
• chroot, grub configuration for recovery
• lvm setup in real world scenario role play
• kernel safeguarding
• selinux in overview concept
• advanced globbing, extended globbing.

That is a long list. I want to learn them. I know basics. Can you suggest good blogs, websites or books or any other ways to learrn? I will implement them on rocky linux 10 as it is free and widely used(locally)

 

[CaffeineAddict]

Can you suggest good blogs, websites or books or any other ways to learrn?

What you've listed is all basic stuff, you can simply highlight each entry then right click and select to browse with search engine.
Search engine should give you the best top X results since there are many articles all cover that.

You can also use man pages if an article is not deep enough.

 

[Brickwizard]

browse with search engine

but dont trust AI results as they are often out of date

 

[kc1di]

This page may be of help to you.

https://labex.io/linuxjourney

 

[Peter52]

Shall have a good read of that link you was kind enough to share with us kc1di.
Big thanks