Sponsored Content
Top Forums Shell Programming and Scripting Reading n number of lines after finding string Post 302459433 by oriqin on Monday 4th of October 2010 04:18:37 PM
Old 10-04-2010
Reading n number of lines after finding string

I am trying to search a file for a value: "Top 30 reject reasons" and want the next 30 lines after that and output in a text file.

If I knew the line number, I can use a combination of head and tail commands to get my results, but this doesn't seem to work when I don't have a line number.

I tried
Code:
grep "Top 30 reject reasons:" a11.txt | head -n30

but that didn't seem to help.

Oh, and this is across multiple files - if you can figure something that will help with this, amazing! Otherwise I can make it into a script and run that!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

finding lines only between a certain string

Dear experts, Ive been trying to figure this out for a while, but i cant. Please help. I have a file, with approx 1 million lines. The contents are separated with "----------". Please see example below So my problem is, i need to find all texts that have the keyword "GAA", but i need... (14 Replies)
Discussion started by: aismann
14 Replies

2. Shell Programming and Scripting

How to print the number of lines from a file, the starting string should be passed`

Hi , I have file, which has the below content: line 100 a b c d line300 a s d f s line200 a s d a (3 Replies)
Discussion started by: little_wonder
3 Replies

3. UNIX for Dummies Questions & Answers

Number of lines containing a certain string

Hey I want to know if there is an option to know the number of lines containing a certain string (bit for example) in a file? Say I want to know number of lines containing only the string BIT in file xyz. I know how to get number of lines in a file by using wc -l but how do you get number of lines... (1 Reply)
Discussion started by: #moveon
1 Replies

4. Shell Programming and Scripting

Merge two non-consecutive lines based on line number or string

This is a variation of an earlier post found here: unixcom/shell-programming-scripting/159821-merge-two-non-consecutive-lines.html User Bartus11 was kind enough to solve that example. Previously, I needed help combining two lines that are non-consecutive in a file. Now I need to do the... (7 Replies)
Discussion started by: munkee
7 Replies

5. UNIX for Dummies Questions & Answers

Finding numbers in lines with strings and number and doing some manipulation

Hi, I want to write a script that does something like this: I have a file, in which in every line, there is a string of words, and followed by some space, a number. Now, I want to identify the line, which has the largest startFace number (say m=8118), take that number and add it to the... (2 Replies)
Discussion started by: super_commando
2 Replies

6. Shell Programming and Scripting

Concatenate lines with unique string AND number

In Bash using AWK or sed I need to convert the following file: ... numitem_tab0 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p><p>5 KEYWORD</p>...<p>25 KEYWORD</p> subitem_tab0 =<p></p><p></p> ... numitem_tab6 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p>... (2 Replies)
Discussion started by: pioavi
2 Replies

7. Shell Programming and Scripting

Reading from a file with limit number of lines

Hi, I am trying to pull data from a txt file which has 51 lines Example AK AR AL AZ CA CO CT Now i want to send above data as input to script but i want to run them twice at a time in a nohup like nohup Script_name AK & (3 Replies)
Discussion started by: krux_rap
3 Replies

8. Shell Programming and Scripting

Add string number to lines

So I have a file in the form > akdfvcnciejcndmdjfk > kdjkkkifjeeeeelfjfuf > fjfhchdejhfhfhfhfhfhf > skdkdhfhvnvncnccm and I would like it to come out in the form >1 akdfvcnciejcndmdjfk >2 kdjkkkifjeeeeelfjfuf >3 fjfhchdejhfhfhfhfhfhf (3 Replies)
Discussion started by: viored
3 Replies

9. Shell Programming and Scripting

Get number of lines after certain string

Hello people, I have a file like that: start something 1 xxx yyy 2 zzz xxx 3 ccc vvv 4 mmm nnn stop something 1 aaa bbb 2 ccc ddd 3 eee fff 4 qqq www start something 1 rrr ttt 2 yyy uuu 3 iii ooo 4 ppp sss And I need only line starting with 1 and 3 and only after start... (7 Replies)
Discussion started by: apenkov
7 Replies

10. Shell Programming and Scripting

Challenge in finding listing class method and its number of code lines

there are about 300 objectivec .m files and I need to print each file name and its method and number of lines inside the method there is a sample perl files that do perl brace matching... (0 Replies)
Discussion started by: steve32001
0 Replies
All times are GMT -4. The time now is 11:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy