How to cut specific line and one line under?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to cut specific line and one line under?
# 8  
Old 05-20-2010
Quote:
Originally Posted by nir_s
Hi expert,

This command does only half of the work Smilie
I need also the line under.
GNU grep will work for the given requirement as:

Code:
grep -n "Beginning log switch checkpoint up to RBA" -A1 t
1:Beginning log switch checkpoint up to RBA [0x4243f.2.10], SCN: 3916025539605
2-Sat May  1 00:54:52 2010
--
9:Beginning log switch checkpoint up to RBA [0x42440.2.10], SCN: 3916026109591
10-Sat May  1 00:57:40 2010

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need to cut a specific pattern from a line

Hello, I need to cut a specific pattern from a line irrespecitve of knowing field place. I am aware to cut field if you know the place of the field, but for me The sting place varies. 1468129514436,0,something_error,Non HTTP response code: java.net.URISyntaxException,Non HTTP response... (5 Replies)
Discussion started by: mirwasim
5 Replies

2. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

3. Shell Programming and Scripting

Cut from specific line number to a line number

Hi All, I've a file like this.. Sheet1 a,1 a,2 a,3 a,4 a,5 Sheet2 a,6 a,7 a,8 a,9 a,10 Sheet3 a,11 a,12 a,13 (7 Replies)
Discussion started by: manab86
7 Replies

4. Shell Programming and Scripting

Commenting a specific line and inserting a new line after commented line.

Hello All, I have following file contents cat file #line=aaaaaa #line=bbbbbb #line=cccccc #line=dddddd line=eeeeee #comment=11111 #comment=22222 #comment=33333 #comment=44444 comment=55555 Testing script Good Luck! I would like to comment line line=eeeeee and insert a new line... (19 Replies)
Discussion started by: manishdivs
19 Replies

5. Shell Programming and Scripting

sed or awk, cut, to extract specific data from line

Hi guys, I have been trying to do this, but... no luck so maybe you can help me. I have a line like this: Total Handled, Received, on queue Input Mgs: 140 / 14 => 0 I need to, get the number after the / until the =, to get only 14 . Any help is greatly appreciated. Thanks, (4 Replies)
Discussion started by: ocramas
4 Replies

6. Shell Programming and Scripting

Using awk to read a specific line and a specific field on that line.

Say the input was as follows: Brat 20 x 1000 32rf Pour 15 p 1621 05pr Dart 10 z 1111 22xx My program prompts for an input, what I want is to use the input to locate a specific field. Like if I type in, "Pou" then it would return "Pour" and just "Pour" I currently have this line but it is... (6 Replies)
Discussion started by: Bungkai
6 Replies

7. Shell Programming and Scripting

How to cut first line only from a text near a specific column without cutting a word

First I have to say thank you to this community and this forum. You helped me very much builing several useful scripts. Now, I can't get a solution the following problem, I'm stuck somehow. Maybe someone has an idea. In short, I dump a site via lynx and pipe the output in a file. I need to... (7 Replies)
Discussion started by: lowmaster
7 Replies

8. Shell Programming and Scripting

cut a string in a textfile line per line

i need to cut the string in a textfile but each line has a specific way of cutting it (different lengths) i have a for loop that gets the string line per line, then each line has to be compared: for x in `cat tmp2.txt`; do if; then echo 'BAC' elif ... (6 Replies)
Discussion started by: izuma
6 Replies

9. Shell Programming and Scripting

To cut a specific line

Hi, I need to remove a specific line from a file.. For eg: From the html codings, I need to find the word "iframe frameborder" and cut it . I tried with find . -type f -exec grep -H 'iframe frameborder' {} \; > <filename> From the output of this result, I need to remove the "iframe... (14 Replies)
Discussion started by: gsiva
14 Replies

10. Shell Programming and Scripting

Deleting Characters at specific position in a line if the line is certain length

I've got a file that would have lines similar to: 12345678 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 23456781 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 34567812 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 45678123 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 xx.00... (10 Replies)
Discussion started by: Cailet
10 Replies
Login or Register to Ask a Question
bup-margin(1)						      General Commands Manual						     bup-margin(1)

NAME
bup-margin - figure out your deduplication safety margin SYNOPSIS
bup margin [options...] DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids. For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by its first 46 bits. The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits, that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits with far fewer objects. If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if you're getting dangerously close to 160 bits. OPTIONS
--predict Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer from the guess. This is potentially useful for tuning an interpolation search algorithm. --ignore-midx don't use .midx files, use only .idx files. This is only really useful when used with --predict. EXAMPLE
$ bup margin Reading indexes: 100.00% (1612581/1612581), done. 40 40 matching prefix bits 1.94 bits per doubling 120 bits (61.86 doublings) remaining 4.19338e+18 times larger is possible Everyone on earth could have 625878182 data sets like yours, all in one repository, and we would expect 1 object collision. $ bup margin --predict PackIdxList: using 1 index. Reading indexes: 100.00% (1612581/1612581), done. 915 of 1612581 (0.057%) SEE ALSO
bup-midx(1), bup-save(1) BUP
Part of the bup(1) suite. AUTHORS
Avery Pennarun <apenwarr@gmail.com>. Bup unknown- bup-margin(1)