num

UNIX+shell范例精解（第4版）代码

#!/bin/sh
# Scriptname: num
num=0			 # Initialize num
while  [ $num -lt 10 ]	          # Test num with test command 
do 
	echo  -n $num
	num=`expr  $num + 1`	        # Increment num 
done
echo "\nAfter loop exits, continue running here"