10 lines
		
	
	
	
		
			128 B
		
	
	
	
		
			Text
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			10 lines
		
	
	
	
		
			128 B
		
	
	
	
		
			Text
		
	
	
		
			Executable file
		
	
	
	
	
case $# in
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0)	DIR=. ;;
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1)	DIR=$1 ;;
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*)	echo $0 [directory] ; exit 1 ;;
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esac
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DD=`pwd`/echod
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DW=`pwd`/dwalk
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export DD
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cd $DIR
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$DW
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