5 lines
		
	
	
		
			142 B
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			5 lines
		
	
	
		
			142 B
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
# reject invalid vars
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"$THIS_SH" -c 'echo ${1q}'
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"$THIS_SH" -c 'echo ${&}'
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#"$THIS_SH" -c 'echo ${$}' -- this is valid as it's the same as $$
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