doc: Update sed.md (#589)

2024-07-10 11:02:58 +08:00 · 2024-07-10 11:02:58 +08:00 · 7c11c4631a
parent 91bc78cf3b
commit 7c11c4631a
1 changed files with 2 additions and 1 deletions
--- a/command/sed.md
+++ b/command/sed.md
@ -172,9 +172,10 @@ sed '2,$d' file
 sed '$d' file
 ```

-删除文件中所有开头是test的行：
+删除文件中所有开头是test的行(d写外边效果一样)：

 ```shell
+sed '/^test/d' file
 sed '/^test/'d file
 ```