# Linux course syllabus
---
## Beginner / Session 01
### Introduction
* Unix philosophy: Do One Thing and Do It Well (DOTADIW)
* How deep is deep enough
* Style is made of certain conscious choices
* Issues: Speed(Google), Concentration(Questions), Boundaries(Sysadmin, DevOps, Programmer)
* Note-taking: Zettelkasten, Second Brain, Obsidian, TiddlyWiki, DokuWiki
* Muscle memory
* Dynamic syllabus
* Linux is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds
* https://distrowatch.com : Debian/Ubuntu/RedHat/CentOS/Fedora/ArchLinux/Manjaroi/Mint/Kali/Slackware
* http://lxer.com : Linux News
### Installation
* Debian
* amd64 / i386 / netinstall
* LVM / RAID / Encryption
* SSH
### Quick Tour
* Login
* logout / exit / <ctrl+d>
* clear / <ctrl+l>
* reboot / poweroff
* passwd
* Virtual Terminals: Alt-F1, Alt-F2, ...
* Shift-PgUp, Shift-PgDn
* ssh client / putty
* ls -lha
* pwd
* Home Directory
* mkdir / rmdir
* cd / cd .. / cd - / cd ~
* touch
* file
* Reuse previous commands
* Using TAB for completion
* Relative / Absolute Addresses
* Redirection: send output to a file or read a file as standard input to a command >
* echo "string" > filename
* rm -i -rf
* cp -i -rv
* mv -i
* alias / unalias
* wild cards * ?
* cat / more / less
* head / tail -f
* ln -s
* man
* Shell Variables (SHELL, HOME, PATH)
* which / type / enable -a
* find
* locate / updatedb
* grep
* ps -A / kill / killall
* Piping: pass standard output as standard input to another command
* chown , /etc/passwd
* chmod
* date, cal / unix timestamp
* uptime / free
### Editing text files: vi
* Command mode(ESC)
* Insert mode(i)
* Command line mode(:)
* :w :q :wq :q! :w filename
* copy/cut/paste/visual y d p v
* search forward/backward
* h j k l $ 0 G x o A
### Compression
* tar zcvf file.tar.gz directory
* tar xf file.tar.gz
* gzip / gunzip / zcat / zless / zgrep
* tar jcf file.tar.bz directory
* tar xf file.tar.bz
* bzip2 / bunzip2 / bzcat / bzless / bzgrep
* tar Jcf file.tar.xz directory
* tar xf file.tar.xz
* xz / unxz / xzcat / xzless / xzgrep
### Network Settings
* ip address add 192.168.10.100/24 dev ens192
* ip address show
* ip -br -c a s
* ifconfig
* ip route add default via 192.168.10.1
* ip route del default
* ip route show
* ip -c r s
* route -n
* ping
* /etc/network/interfaces
<code>
auto lo
iface lo inet loopback
auto ens192
iface ens192 inet static
address 192.168.10.100/24
gateway 192.168.10.1
iface ens192 inet6 static
address 2a0e:0:1:b:109::/64
gateway 2a0e:0:1:b::1
nameserver 85.15.1.14 nameserver 85.15.1.15
### Package Management
deb http://deb.debian.org/debian bullseye main contrib non-free
deb http://deb.debian.org/debian bullseye-updates main contrib non-free
deb http://deb.debian.org/debian bullseye-backports main contrib non-free
deb http://security.debian.org/debian-security bullseye-security main contrib non-free
deb-src http://deb.debian.org/debian bullseye main contrib non-free
deb-src http://deb.debian.org/debian bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian bullseye-backports main contrib non-free
deb-src http://security.debian.org/debian-security bullseye-security main contrib non-free
</code>