18 lines
		
	
	
		
			329 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			18 lines
		
	
	
		
			329 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|  | # OS Module
 | ||
|  | 
 | ||
|  | Functions for accessing the operating system. | ||
|  | 
 | ||
|  | ### env
 | ||
|  | 
 | ||
|  | ``` | ||
|  | os:env NAME [DEFAULT] | ||
|  | ``` | ||
|  | 
 | ||
|  | Returns the value of the environment variable NAME. If no environment with NAME | ||
|  | is defined, then DEFAULT will be returned, if specified. Otherwise, nil will be | ||
|  | returned. | ||
|  | 
 | ||
|  | ``` | ||
|  | echo "User's home directory is: " (os:env "HOME") | ||
|  | ``` |