示例语句：
Bash also interprets a number of multi-character options.
!/bin/bash
#
shell打印示例语句中字母数小于6的单词
#
for s in Bash also interprets a number of multi-character options.
do
n=echo $s|wc -c
if [ n−lt6]thenechos
fi
for s in Bash also interprets a number of multi-character options.
do
n=echo $s|wc -c
if [ n−lt6]thenechos
fi
