Question

Shell编程：怎么实现从1到100的输出

Answer 1

You can write a shell file count.sh like this:
*****************************

#!/bin/sh
num=1
while [ $num -le $1 ]
do
echo $num
num=`expr $num + 1`
done
num=1
while [ $num -le $1 ]
do
echo $num
num=`expr $num + 1`
done

*****************************

$chmod a+rwx count.sh
Then you can run ./count.sh count_num
example: ./count.sh 100
programm will output the number 1~100