shell – 如何grep一个文件并获得下一行5行

发布时间：2020-12-15 19:32:50 所属栏目：安全来源：网络整理

导读：如何在19:55的grep文件中获得第1,2,3,4,5行？ 2013/10/08 19:55:27.471Line 1Line 2Line 3Line 4Line 52013/10/08 19:55:29.566Line 1Line 2Line 3Line 4Line 5 你要： grep -A 5 '19:55' file 从人grep： Context Line Control-A NUM,--after-context=NUMPr

如何在19:55的grep文件中获得第1,2,3,4,5行？

2013/10/08 19:55:27.471
Line 1
Line 2
Line 3
Line 4
Line 5

2013/10/08 19:55:29.566
Line 1
Line 2
Line 3
Line 4
Line 5

你要：

grep -A 5 '19:55' file

从人grep：

Context Line Control

-A NUM,--after-context=NUM

Print NUM lines of trailing context after matching lines.  
Places a line containing a gup separator (described under --group-separator) 
between contiguous groups of matches.  With the -o or --only-matching
option,this has no effect and a warning is given.

-B NUM,--before-context=NUM

Print NUM lines of leading context before matching lines.  
Places a line containing a group separator (described under --group-separator) 
between contiguous groups of matches.  With the -o or --only-matching
option,this has no effect and a warning is given.

-C NUM,-NUM,--context=NUM

Print NUM lines of output context.  Places a line containing a group separator
(described under --group-separator) between contiguous groups of matches.  
With the -o or --only-matching option,this  has  no effect and a warning
is given.

--group-separator=SEP

Use SEP as a group separator. By default SEP is double hyphen (--).

--no-group-separator

Use empty string as a group separator.

（编辑：李大同）

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