Mostly adds slides about references and branches. Also tweaked python start code and re-aranged / tweaked some existing slides
		
			
				
	
	
		
			8 lines
		
	
	
	
		
			135 B
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			8 lines
		
	
	
	
		
			135 B
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
| #!/usr/bin/env bash
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| 
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| cd /tmp/demo
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| 
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| echo '$ cat .git/refs/heads/master'
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| cat .git/refs/heads/master
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| echo '$ cat .git/HEAD'
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| cat .git/HEAD
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