a-z如何循环？

[blue sea]

#!/bin/bash

############################
#whois 查询a.cn-z.cn注册备案情况
############################

word=[a-z]
for $word in [a-z]
do
whois $word.cn >> whois.txt
done

这样不行。

[yingfei]

代码： 全选

 for word in {a..z}; do echo $word; done

[blue sea]

thank you yingfei.

for $word in {a..z};
do whois $word.cn >> whois.txt;
done