$ 的一个问题

youcz

[root@localhost youcz]# var=$'This is the bottom line\nThis is the top line\n'  [root@localhost youcz]# echo -e $var
This is the bottom line This is the top line
[root@localhost youcz]# var=$'This is the bottom line\x0aThis is the top line\n'
[root@localhost youcz]# echo $var
This is the bottom line This is the top line

这个变量赋值的$什么作用？

youcz

回复 1# youcz


    [root@localhost youcz]# echo "$var"

This is the bottom line
                       This is the top line

nuclearxin

shell 的解释循序有关系 我猜到的 没找到具体资料