Grep 2 consecutive lines and replace the second line in a file Post: 302937800

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1. Shell Programming and Scripting

grab next consecutive line or lines

Hello i'm writting a krn shell that will find the letter F and I would like to grab everything from F till 0:00. Is there a sed or awk command that i could use. Thank you. File is looks like this. 11/12 xxx xxxx xxx F xxxx xxxx some info entered here some info entered here xxxx...

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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...

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Removing consecutive lines in a file

We have very large transaction logs that have transactions which start with a line that starts with 'Begin :' and ends with a line that starts with 'End :'. For most transactions there is valid data between those two lines. I am trying to get rid of lines that look like this: Begin :...

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sed to replace a line with 2 or more different lines in same file

i have something like this... cat filename.txt <complexType name="abc"> bklah vlah blah blha blha blah blha </complexType > <complexType name="def"> bklah vlah blah blha blha blah blha </complexType > . . .and so on.. its a very large file

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How to insert line with between two consecutive lines that match special pattern?

I have following pattern in a file: 00:01:38 UTC abcd 00:01:48 UTC 00:01:58 UTC efgh 00:02:08 UTC 00:02:18 UTC and I need to change something like the following 00:01:38 UTC abcd 00:01:48 UTC XXXX 00:01:58 UTC efgh 00:02:08 UTC XXXX

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Grep couple of consecutive lines if each lines contains certain string

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Delete 26 consecutive lines in a file

I have a text file that is about 90,000 lines long. How would I delete lines 64-89, 152-177, 240-265, 328-353... etc? The sections I would like to delete are 26 lines long and the number of lines between the sections I would like to delete is 62 lines. Thanks very much in advance.

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Grep three consecutive lines if each lines contains certain string

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Replace consecutive occurrence of string in same line

Hi All, I have a requirement to replace consecutive occurence of same string nedd to be replaced. Below is the input and desired output. Input: --------- 123.5|ABC|.|.|. 234.4|DEF|.|.|.|.|.| Output: --------- 123.5|ABC|||. 234.4|DEF||||| so basically "|.|" need to be replaced with...

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Grep multiple patterns(file) and replace whole line

I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string? For example: pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern...

LEARN ABOUT V7

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

grab next consecutive line or lines

Discussion started by: wisher115

2. Shell Programming and Scripting

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

Discussion started by: munkee

3. Shell Programming and Scripting

Removing consecutive lines in a file

Discussion started by: deneuve01

4. Shell Programming and Scripting

sed to replace a line with 2 or more different lines in same file

Discussion started by: vivek d r