第一段代码
str="this is shell";
for i in $str
do
echo $i;
done
输出的结果是:
this
is
shell
第二段代码
for i in "this is shell"
do
echo $i
done
输出的结果是:
this is shell
第一段代码
str="this is shell";
for i in $str
do
echo $i;
done
输出的结果是:
this
is
shell
第二段代码
for i in "this is shell"
do
echo $i
done
输出的结果是:
this is shell
第一段,用变量,for循环相当于 for i in this is shell 相当于i有3个参数this is shell
第二段用引号,是一个整体,i就只有一个值了