Shell——expr应用案例:打印下面字符串中字符数不大于6的单词
脚本:
#!/bin/bash
for i in I am the a hero and you must to learning py
do
if [ `expr length $i` -le 6 ]
then
echo $i
fi
done
执行结果:
脚本:
#!/bin/bash
for i in I am the a hero and you must to learning py
do
if [ `expr length $i` -le 6 ]
then
echo $i
fi
done
执行结果: