#LinuxClient

• Powershell is similar to Bash language.

![[Pasted image 20240319092118.png]]

• Richard Stallman did reverse engineering and created GNU to be distributed freely. / Created the term "Copyleft". He invented theopen-source notion. He was considered a communist.

Levels of Unix

1. Core: Material level
2. Shell: Text/command level
3. X Window: Graphic level

• root is the administrator user.
• Unix basically done for multiple users.

![[Pasted image 20240319094618.png]]

Distros

• Elementary OS -- similar to MacOS
• Ubuntu, Kubuntu, Zubuntu etc

distrosea.com for linux distros in your browser directly !

OEM : commercialized custom distribution ready to be installed directly

~ = Tilde, around, environment, yaklaşık

pwd = print working directory

$ = normal user account

# = root user account

ByPassing user login

This works on LinuxMint and some certain distros. When system starts press ESC > Advanced Options > Continue as root to access the root terminal.

bash : is a shell. (born again shell)

UGO logic : Users / Groups / Others

![[users and groups in linux 3.png]]

Users	Groups	Others
rwx	r-x	---

Execute rights of documents

• There are no scripts/shells executable by default on linux.
• We give the x right to the file and it becomes executable.

Archieving & Zips RARS

Tar to archive a file, get everything at one place. Doesn't compress.

Gzip and Bzip2 to compress them. Extensions will be .tar.gz or .tar.bz2. Bzip2 compresses better but takes more time to complete.

System Monitoring & Surveillance

Use htop to see active actions.

sudo apt install htop htop

[[MC Midnight Commander]]

to manage files easily you can change the read-write rights easily

![[Pasted image 20240321144153.png]]

cron automatization

we create a new shell with nano test.sh we write

#!/bin/bash
clear
ls -al
echo "lance firefox"
firefox&

we command > sh test.sh to launch firefox with this shell app.