看书遇到关于grep指令问题

[apple1900]

知识点：通配符【^abc】代表一定有一个字符，只要非a,b,c的其他字符就可以
现在有一文件regular_express.txt内容如下
"Open Source" is a good mechanism to develop programs.
apple is my favorite food.
Football game is not use feet only.
this dress doesn't fit me.
However, this dress is about $ 3183 dollars.
GNU is free air not free beer.
Her hair is very beauty.
I can't finish the test.
Oh! The soup taste good.
motorcycle is cheap than car.
This window is clear.
the symbol '*' is represented as start.
Oh! My god!
The gd software is a library for drafting programs.
You are the best is mean you are the no. 1.
The world <Happy> is the same with "glad".
I like dog.
google is the best tools for search keyword.
goooooogle yes!
go! go! Let's go.
# I am VBird

（注：最后一行是空的）
为什么grep -n 'the' regular_express.txt 和grep -n '^the' regular_express.txt 都能搜索到
12:the symbol '*' is represented as start.？？？？？？

[shiznet]

感觉没啥问题啊

[Fermat618]

有方括号还是没方括号，这是个问题。

[msos]

看不懂，来围观，留名字

[lilydjwg]

有方括号还是没方括号，这是个问题。

那个叫六角括号。

[naturalaw]

lz看點正則表達式的資料吧。
[^abc]和^abc不一樣。前面的[^abc]是排除，後面的^是行首。

[懒蜗牛Gentoo]

ls正解

[apple1900]

naturalaw, 对！！！！！！！！
我看浑了，晕死我了。看到后面他有比较^在括号外面和里面是不一样的！！

[apple1900]

shiznet, ，我不是问了么

[apple1900]

Fermat618, 对！！！！！！！！
我看浑了，晕死我了。看到后面他有比较^在括号外面和里面是不一样的！！

[apple1900]

有方括号还是没方括号，这是个问题。

那个叫六角括号。

，问题不在那