合格linux运维人员必会的30道shell编程实践题及讲解-10

企业实践题10：请用至少两种方法实现！
bash for循环打印下面这句话中字母数不大于6的单词(昆仑万维面试题)。
I am oldboy teacher welcome to oldboy training class.

#!/bin/bash
array=(I am oldboy teacher welcome to oldboy training class.)
for i in ${array[*]}
do
    if [ ${#i} -le 6 ];then
       echo -n " $i"
    fi
done
echo