Sed 添加到每个文件的行尾_Sed

Sed 添加到每个文件的行尾

sed

Sed 添加到每个文件的行尾,sed,Sed,我有25000个.txt文件，所有这些文件都遵循以下模式： String found only at the start of line 1 in every file :Variable text with no pattern String found only at the start of line 2 in every file :(Variable text with no pattern String found only at the start of line 3 in eve

我有25000个.txt文件，所有这些文件都遵循以下模式：

String found only at the start of line 1 in every file :Variable text with no pattern
String found only at the start of line 2 in every file :(Variable text with no pattern
String found only at the start of line 3 in every file :(Variable text with no pattern
String found only at the start of line 4 in every file :(Variable text with no pattern
String found only at the start of line 5 in every file :[Variable text with no pattern

有谁能告诉我如何在当前目录中的每个文件和所有带有sed的子目录的第1行末尾添加一个空格，在第2、3和4行末尾添加一个右括号，在第5行末尾添加一个右括号？从今天起，我还不熟悉通过终端批量编辑文本文件，尽管我花了几个小时寻找解决方案，但似乎不知道如何完成修改这些文件内容的最后一步

感谢您提供任何想法、解决方案或有用的链接皮特·伍德

（使用Debian 7）

以下命令将请求的字符添加到请求行的末尾。（我不确定“复制括号”是什么，所以我使用了

）：

工作原理

```
1s/$/
```
```
1
```
告诉
```
sed
```
仅将此替换应用于行末尾的行
$
```
匹配项。
```
s`命令在行尾添加一个空格
替换命令的格式为
```
s/old/new/
```
。它们在
```
旧的
```
文本上匹配，并将其替换为
```
新的
```
。在本例中，我们希望在一行末尾匹配，表示为
```
$
```
，并在那里放置一个空格
```
2,4s/$/）/
```
```
2,4
```
告诉
```
sed
```
仅对2到4之间的行应用此替换。它在行尾添加一个
```
）
```
```
5s/$/\]/
```
```
5
```
告诉
```
sed
```
仅对第5行应用此替换。它在行尾添加一个
```
]
```
。由于
```
]
```
处于激活状态，因此必须对其进行转义

将其应用于所有文件要更改所有文件的位置，制作扩展名为

.bak

的备份副本，请使用：

sed -i.bak '1s/$/ /; 2,4s/$/)/; 5s/$/\]/' *.txt

这是一个

awk

版本：

awk 'NR==1 {$0=$0" "} NR>1 && NR<5 {$0=$0")"} NR==5 {$0=$0"]"} 1' files*
String found only at the start of line 1 in every file :Variable text with no pattern
String found only at the start of line 2 in every file :(Variable text with no pattern)
String found only at the start of line 3 in every file :(Variable text with no pattern)
String found only at the start of line 4 in every file :(Variable text with no pattern)
String found only at the start of line 5 in every file :[Variable text with no pattern]

awk'NR==1{$0=$0”“}NR>1&&NR感谢John的代码，特别是感谢您花额外的时间带我浏览它-我将剪切并粘贴它以供将来参考。当我把所有的文件放在同一个文件夹中，几乎没有花时间时，这真是一种享受。。。。比我打算在旧XP机器上运行的AHK脚本要好得多，而旧XP机器要花87个小时才能完成同样的任务！感谢您的替代解决方案！
awk 'NR==1 {$0=$0" "} NR>1 && NR<5 {$0=$0")"} NR==5 {$0=$0"]"} 1' files*
String found only at the start of line 1 in every file :Variable text with no pattern
String found only at the start of line 2 in every file :(Variable text with no pattern)
String found only at the start of line 3 in every file :(Variable text with no pattern)
String found only at the start of line 4 in every file :(Variable text with no pattern)
String found only at the start of line 5 in every file :[Variable text with no pattern]