# O-DU High. Working with libraries. Exploring files system.
###### tags: `Internship 2nd level`
:::success
**Goal:**
- Understanding of installation process of O-DU High.
**Resources:**
- [O-DU High guide](https://hackmd.io/fcN5KBikQMCWkJIaDy1iyg?view)
- [How to work with Linux](https://www.youtube.com/watch?v=ROjZy1WbCIA)
:::
# Improving installation skill of O-DU High.

## Input:
:::danger
Please try to make a note like below.
For example when you're studying:

:::
> Reference: https://www.youtube.com/watch?v=ROjZy1WbCIA
### Part 1: Working with Directories
```shell=
pwd
# This command is used to show the current working directory
ls
# This command is used to list the files/dir in current directory
cd [directory]
# This command is to go to directory
```
Test command on PC:
