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Linux Origin After Unix

Distributions

Previous Systems Unix BSD Linux Multics BSD File Server System Punched Card Computers – Keyboard Input Computers – Compatible Time-share System BSD Bill Joy – Berkley Software Distribution – Sun Corp - OpenBSD File Server System Ken Thompson – Prototype of UNIX – “All Files” – “Efficient” No Unisversal Hardware Protcol SystemV / AIX / DEC Unix Ritchie – Bell Lab – B Languange – C Language – “Just For A Game?” Minix Andrew Tanenbaum – Intel X86 Development Linux Torvalds - Multi-task – GNU (GCC/Bash) - POSIX Distribution Kernel + Software + Tools + Documentation = Distribution

From Window To Linux Change your mind

Linux /usr/bin/php Directory Tree Structure Windows C:\Windows\system32\cmd.exe Partition Using (NTFS) C: D: E: Linux /usr/bin/php Partition Using (EXT4) /dev/sda /dev/nvme01

Linux Directory Tree All come from root

Linux Directory Tree

Bash root@cqu-msc#

Bash [root@localhost ~]# command –options parameters

User Rights Control Windows sucks

User Rights Control

User Rights Control [root@localhost ~]# useradd –u UID –g GROUP –d DIRECTORY –s SHELL USERNAME [root@localhost ~]# passwd USERNAME [root@localhost ~]# su USERNAME

File Permission Do not 777 all the time

File Permission [root@localhost ~]# ls -al Permission I-node Owner Usergroup Size Date

File Permission

File Permission [root@localhost ~]# chown USERNAME FILE [root@localhost ~]# chmod 755 FILE [root@localhost ~]# chmod a+x FILE

File Permission

File Operation Safety First

File Permission [root@localhost ~]# cd DIR [root@localhost ~]# mkdir DIR [root@localhost ~]# touch FILE [root@localhost ~]# rm FILE [root@localhost ~]# rm –R DIR

File Permission Relative Path [root@localhost ~]# cd ./docs/python Absolute Path [root@localhost ~]# cd /root/docs/python

File Permission [root@localhost ~]# cp FILE PATH [root@localhost ~]# cp –R DIR PATH [root@localhost ~]# mv FILE PATH [root@localhost ~]# mv –R DIR PATH [root@localhost ~]# mv FILE FILE1

Vim Can you exit vim?

Vim [root@localhost ~]# vim FILE

Tasks Change your APT Source to China Server and refresh it  Using APT to install the apache binary  Using Servive command to start apache service  Locate the web server path and modify your index.html  Open your web browser to check whether your modification is working 

Thanks You Enjoy Your Linux 2018.12.9