num

UNIX+shell范例精解（第4版）代码

#!/bin/bash
# Scriptname: num
num=0			 # Initialize num
while (( $num < 10 ))   # or  while [ num -lt 10 ]
do 
	echo  -n "$num "
	let num+=1           # Increment num 
done
echo -e "\nAfter loop exits, continue running here"