This repository contain all the work I made on operational system (Linux), on how to use effectively shell commands and scripts.
A quick introduction of shell basics commands
All basic work on how to give an withdraw permission to a user or group, change owner and group on a file.
Contain some basics commands to search a lot of thing on file, or on documentary, and make some work on them. See how input and outpout (stdin stdout sdterr) work. Creating our first scripts
Some exemples that show how to use variables, see how to create locals or globals variables. Discovers all env variables. Creating more scripts.
Quick overview of loops and statements in bash language, introduction to log parsing.