1. Carl’s Ultra-Basic Guide to the Command Line and Git Carl G. Stahmer Director of Digital Scholarship www.carlstahmer.com cstahmer UD Davis Data Science Initiative 4/8/2016

2. https://git-scm.com/downloads

3. Folders You Know and Love HD | C:// Folder 1 Folder 2 Folder 3 Folder 4 Folder A Folder B Folder C

4. Folders You Know and Love HD | C:// Folder 1 Folder 2 Folder 3 Folder 4 Folder A Folder B Folder C C://Folder 1/Folder A

5. Folders You Know and Love HD | C:// Folder 1 Folder 2 Folder 3 Folder 4 Folder A Folder B Folder C C://Folder 4/Folder C

6. Unix Directory Structure / (Root Directory) Directory_1 Directory_2 Directory_3 Directory_4 Directory_A Directory_B Directory_C

7. /Directory_1/Directory_A/ (Root Directory) Directory_1 Directory_2 Directory_3 Directory_4 Directory_A Directory_B Directory_C Unix Directory Structure

8. /Directory_1/Directory_A/ (Root Directory) Directory_1 Directory_2 Directory_3 Directory_4 Directory_A Directory_B Directory_C Unix Directory Structure

9. Why Directory?

10. usage: ls

11. usage: ls -a

12. Usage: ls –l

13. Essential Unix Commands CommandExampleDescription ls La –a List files in a directory cd cd /root/dir cd../ Change directory cpcp file1 file2Copy file1 as file2 mvmv file1 /file2 Move file one to root and name file2 rmrm file1Delete file1 mkdirmdkir photos Made a new directory named photos rmdirrmdir photos Remove photos directory moremore file1Read file1 manman lsShow manual for ls

14. Useful Unix Commands CommandExampleDescription grepgrep ”string” fileSearch files chmodchmod 777 file1 Change permissions killKill -9 192312Kill process ID pushdpushd./photos Move into photos directory popd Pop back up from pushd diffdiff file1 file2 Compare two files pwd Show current directory history Prints your terminal history

15. Fun Unix Commands CommandExampleDescription who Tell you who you are finger Tells you who’s on network Traverse back through previous command stack Traverse back down through command stack date Show date fortune Random humorous message rev Reverses any string Z Stops a process

16. All text files (and editors) are not made equal  What you see

17. All text files (and editors) are not made equal  What you see

18. VI/VIM Text Editor

19. Open Source GUI Text Editors Mac: Text Wrangler from Bare Bones Software http://www.barebones.com/ http://www.barebones.com/ Windows: NotePad++ https://notepad-plus-plus.org/https://notepad-plus-plus.org/ Every good coder needs a good text editor. Download one of the following based on your platform:

20. Open Source Distributed Version Control

21. Multiple Git Repositories

22. https://git-scm.com/downloads

23. What is Open Source Version Control?

25. What is Open Source Distributed Version Control? User 1 User 2 User 3 Central Repository Central Repository Push Pull

26. Change History

27. Conflict Resolution

28. Most Important: Revert Version 1Version 2Version 3Version 2

29. Beginning to Git CommandExampleDescription git init cd /directory/to/control git init Puts the working directory under Git control git status Returns status information about the repository git branch Tell you on which branch you are currently working git addgit add filename Adds the specified file to the staging area git commit –m Commits the staged files

30. Branching and Merging CommandExampleDescription git checkout -bgit checkout –b newbranch Creates a new branch and checks it out git checkoutgit checkout master Checks out the named branch git addgit add filename Adds a file to the Staging Area git commit –m Commits staged files with entered comments git commit Commits the staged files and prompts for comments

31. Step 1: Create directory for new repository Step 2: CD into new directory Step 4: Add some files to the directory Step 3: Check repository status Creating a Local Repository

32. Step 1: Check status to see what’s changed Step 2: Add changed files to Staging Area Step 4: Commit changes Step 3: Check status to see changes Committing Changes to Repository Step 5: View Log

33. Step 2: Create new branch Step 4: Switch between branches Step 3: See new branch Branching Step 1: See branches

34. Step 2: Checkout branch you want to merge into Step 3: Merge branch Merging Step 1: Commit changes to working branch

35. Reverting Version 1Version 2Version 3Version 2 Step 1: Identify Version

36. Reverting Version 1Version 2Version 3Version 2 Step 2: View files from a commit to verify version Step 3: Get back current commit Step 4: Reset staging and history

37. Reverting Version 1Version 2Version 3Version 2 Step 4: Checkout the file version you want Step 5: Add the file to the Staging Area Step 6: Commit

38. Working with Remote Repositories

39. Working with Remotes CommandExampleDescription git checkout -bgit checkout –b newbranch Creates a new branch and checks it out git checkoutgit checkout master Checks out the named branch git addgit add filename Adds a file to the Staging Area git commit –m Commits staged files with entered comments git commit Commits the staged files and prompts for comments

40. Fetch Remote Step 1: Create directory for new repository Step 2: CD into new directory Step 3: Add origin repository Step 4: Fetch remote repository metadata

41. Fetch Remote Simple Step 1: Clone remote repository

42. Thank You Carl G. Stahmer Director of Digital Scholarship www.carlstahmer.com cstahmer Ultra-Basic Guide to the Command Line and Git 4/8/2016