1. System-generated variables — As the name suggests these are the variables generated by the operating system. These variables are viewed by invoking the Set command. 2. User-defined variables —…

Abdelghani HAMAZ

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This post covers various interview questions for DevOps engineers related to BASH and Linux, including types of variables used in shell scripting, checking if a file exists, default file permissions, CRONTAB, debugging shell scripts, disk usage, shebang line, Linux process stages, metacharacters, renaming files, reading command line arguments, standard streams in Linux, differentiating between two shell variables, checking file existence, extracting part of a string variable, differences in string matching, SSH authentication, special shell variable $?, using grep to find numeric digits, listing file names only, checking if a zip file contains a directory, and when to use curly braces around shell variables.

BASH/Linux Interview Question for DevOps Engineers

SSH Authentication Refused: Bad Ownership or Modes for Directory

When do we need curly braces around shell variables?

All about {Curly Braces} in Bash - Linux.com

Could be an interesting topic however this article feels very AI generated. It’s just questions and straight up answers without additional insight. Just like a ChatGPT thread. Very disappointing.

Not good content. I found an error in the article with question 16. I’m sure there are more and many of the answers feel like they could be improved upon a lot:
<blockquote>
[[ $string == “efg*” ]] &gt; checks if string is efg)
</blockquote>
this isn’t correct. It checks if the string is ‘efg*’
Question number 17. Isn’t a question. Question 14. is a repitition of question number 1. These are just the most obvious issues I saw in the article. I’m sure there are more.