Question

这是我的档案。

'#### 
OutOfmemory is the error which has occured
Log Error
Sample
'####
Incident Dump Executor 
Test
Notinhg
'####
Sample
test
'####
OutOfmemory Sample
This is what i want
'####

从这个文件中，我想找到OutOfmemory，一旦发现我需要打印####

之间的行

OutOfmemory出现两次，所以我想要这样的输出：

'#### 
OutOfmemory is the error which has occured
Log Error
Sample
'####

'####
OutOfmemory Sample
This is what i want
'####

我不希望输出中剩余的行。

Answer 1

将grep与-A（之后）和-B（之前）选项一起使用，您可以指定在找到匹配之后/之前显示的行数。假设您的文件名为foo，您可以这样做：

cat foo | grep -i -B 1 -A 2 "OutOfmemory"

Answer 2

使用gnu-awk你可以这样做：

awk -v RS="'####" 'BEGIN{ORS=RS "\n\n"} /OutOfmemory/{print RT $0}' file

'####
OutOfmemory is the error which has occured
Log Error
Sample
'####

'####
OutOfmemory Sample
This is what i want
'####

搜索特定字符串并在特定字符串之间打印 - Linux Shell Script

2 个答案: