What is meant by the words "Fundamentals of Unix/Linux"?

Question

linux

Looking for a job and trying to figure out what I need to study. In some vacancies they write that knowledge of the basics of unix / linux is required, what is meant by this? What should I know in this case?

Answer 1

Commands for working with files and folders: mkdir ls cd chmod chown
be able to use (accept such a construction) the following construction: cat foo.log | grep bar
Be able to use some kind of package manager, commands like: apt-cache search mysql, apt-get install mysql-server
Understand what is in the folders /etc, /etc/init.d, /home, /var
Be able to start and restart daemons, service command
And also know the commands, process management: ps, top, kill
For networks, know: ping nslookup traceroute and of course ssh at the console level, even ifconfig at the level see your ip
Be able to spy on the main utility keys through the key -- help, i.e. e.g. grep --help
be able to use a simple text editor like nano
Well, that's enough, spend a day on mastering it, as a result, write a cheat sheet for yourself. Tell the employer that you have no experience, but after reading the requirement for the vacancy, we spent a day to figure it out and compiled a cheat sheet so as not to forget and was at hand - the employer will like it, 100% guarantee

Answer 2

it is to be able to use the standard set: ls, cat, tail, less, touch, chmod ,
parsing the output of streams with grep, awk
, etc. :)
it is desirable to be able to write simple scripts
imho