Lecture 01: welcome and intro what LSD and Unix have in common

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1 Lecture 01: welcome and intro what LSD and Unix have in common Hands-On Unix System Administration DeCal / 21

2 The Two of the most famous products of Berkeley are LSD and Unix. I don t think that this is a coincidence. (from The Unix-Haters Handbook) 2 / 21

3 this? Who are we? Unix? sysadmining? Logistics 3 / 21

4 What is this? this? Who are we? Unix? sysadmining? Logistics CS 98/198-8, the Hands-on Unix system administration DeCal decal.ocf.berkeley.edu Don t be shy. Ask questions in class or on Piazza. 4 / 21

5 Who are we? this? Who are we? Unix? sysadmining? Logistics Dara Adib: 3rd-year CivE; OCF general manager, Kloudless DevOps Felix Wong: 4th-year EECS; OCF site manager, ResComp sysadmin Jessica Yu: 3rd-year CS; ResComp sysadmin 5 / 21

6 What is Unix? this? Who are we? Unix? sysadmining? Logistics Time System III & V family BSD (Berkeley Software Distribution) Bill Joy BSD family SunOS Xenix OS Microsoft/SCO GNU Project Richard Stallman Commercial UNIX HP-UX Minix Research UNIX 10 Bell Labs: Ken Thompson, Dennis Ritchie, et al. AT&T AIX NextStep Solaris FreeBSD NetBSD GNU/Linux Linus Torvalds Andrew S. Tanenbaum IBM OpenBSD UnixWare IRIX Darwin Univel/SCO Sun Microsystems SGI MacOS X Apple Computer GNU/Hurd K a 10 5/09 11i v MP / 21

7 What is sysadmining? this? Who are we? Unix? sysadmining? Logistics 7 / 21

8 Logistics this? Who are we? Unix? sysadmining? Logistics lecture-lab format: lab due at start of next week s class lab homework grading: attendance, labs, final project bring laptop if possible 8 / 21

9 In a nut s 9 / 21

10 The In a nut s an ordinary program (e.g., bash) that lets you access the system text-based edit files, run other, etc. can be automated with scripting 10 / 21

11 In a nut In a nut s there s a prompt type something read output repeat 11 / 21

12 Common s In a nut s sh/bash csh/tcsh zsh fish 12 / 21

13 Basic In a nut s pwd: print working directory ls: list file cd: change working directory mkdir: make directory rmdir: remove empty directory 13 / 21

14 Basic In a nut s touch: create/access file mv: move file cp: copy file rm: remove file 14 / 21

15 Basic In a nut s echo: print text cat: print file less (more): scroll ( page ) through file grep: search file for specified pattern 15 / 21

16 Saving In a nut s command history tab-completion 16 / 21

17 RTFM In a nut s have command line options. e.g., ls -l are (usually) documented e.g., man ls, ls --help search manpages with apropos (or Google) 17 / 21

18 Unix paradox In a nut s Good Unix are simple do one thing well cat came back from Berkeley waving flags (Rob Pike [Unix minimalist]) 18 / 21

19 ls -l In a nut s filenames preceded with a dot are hidden by default e.g.,.bashrc special directories. (one dot): current directory.. (two dots): parent directory 19 / 21

20 vi(m) 20 / 21

21 vi(m) vi(m) I was trying to make it usable over a 300 baud modem (Bill Joy [Berkeley graduate student]) modal text editor: normal mode, insert mode vimtutor 21 / 21

Basics of system administration on a Unix system

Basics of system administration on a Unix system Contents Introduction 3 Unix 9 User environment: the shell 10 File management: starting from / 11 Text editing 12 Package management 13 User management