7 lines
		
	
	
		
			No EOL
		
	
	
		
			160 B
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			7 lines
		
	
	
		
			No EOL
		
	
	
		
			160 B
		
	
	
	
		
			Bash
		
	
	
	
	
	
| mkdir $out
 | |
| echo $(cat $input1/foo)$(cat $input2/bar)xyzzy > $out/foobar
 | |
| 
 | |
| # Check that the GC hasn't deleted the lock on our output.
 | |
| test -e "$out.lock"
 | |
| 
 | |
| sleep 3 |