grep 列表反转

Question

如果文件不包含字符串，如何打印文件名？

grep -vl 'string' file

总是打印 file，我猜是因为每个文件至少有一行不是 string.

$ ls
one  two  three  four  five
$ grep -l 'odd' *
one
three
five
$ grep -lv 'odd' *
one
two
three
four
five

但我希望它打印第一个选项的反函数

two
four

Answer 1

根据grep documentation：

-L
--files-without-match
Suppress normal output; instead print the name of each input file from which no output would normally have been printed. The scanning of each file stops on the first match.

所以，你需要使用

grep -L 'odd' *
four
two

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