Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Grep lines between two specific words after matching pattern
Top Forums UNIX for Beginners Questions & Answers Grep lines between two specific words after matching pattern Post 303044422 by MadeInGermany on Friday 21st of February 2020 05:07:15 AM
Old 02-21-2020
The previous did not work for me.
Perhaps because of the mistake that a test buffer makes assumptions about the contents that can go wrong.
Better have a separate state variable (here: buffer_on)
Code:
awk '
  buffer_on {
    buffer=buffer ORS $0
  }
  ! buffer_on && /Start/ {
    buffer_on=1
    buffer=$0
  }
  buffer_on && /End/ {
    if (buffer~/12345/) print buffer
    buffer_on=0
  }
' file

--- Post updated at 12:07 ---

Introducing a separator variable:
one can include/exclude the Start and/or End pattern by simply changing the order of the 3 code blocks.
Code:
awk '
  buffer_on {
    buffer=buffer ors $0
    ors=ORS
  }
  ! buffer_on && /Start/ {
    buffer_on=1
    buffer=ors=""
  }
  buffer_on && /End/ {
    if (buffer~/12345/) print buffer
    buffer_on=0
  }
' file

Code:
awk '
  ! buffer_on && /Start/ {
    buffer_on=1
    buffer=ors=""
  }
  buffer_on {
    buffer=buffer ors $0
    ors=ORS
  }
  buffer_on && /End/ {
    if (buffer~/12345/) print buffer
    buffer_on=0
  }
' file

Code:
awk '
  ! buffer_on && /Start/ {
    buffer_on=1
    buffer=ors=""
  }
   buffer_on && /End/ {
    if (buffer~/12345/) print buffer
    buffer_on=0
  }
  buffer_on {
    buffer=buffer ors $0
    ors=ORS
  }
' file

Code:
awk '
   buffer_on && /End/ {
    if (buffer~/12345/) print buffer
    buffer_on=0
  }
  buffer_on {
    buffer=buffer ors $0
    ors=ORS
  }
  ! buffer_on && /Start/ {
    buffer_on=1
    buffer=ors=""
  }
' file

 

10 More Discussions You Might Find Interesting

1. Programming

getting file words as pattern matching

Sir, I want to check for the repation of a user address in a file i used || as my delimiter and want to check repetaip0n of the address that is mailid and then i have to use IMAP and all. How can i do this... I am in linux ...and my file is linux file. ... (5 Replies)
Discussion started by: arunkumar_mca
5 Replies

2. Shell Programming and Scripting

How to from grep command from a file which contains matching words?

Hi all I have a file with below content (content is variable whenever new product is launched). I need form a grep command like this egrep "Unknown product|Invalid symboland so on" How to do it using a script? Unknown product Invalid symbol No ILX exch found exceeds maximum size AFX... (4 Replies)
Discussion started by: johnl
4 Replies

3. Shell Programming and Scripting

counting the lines matching a pattern, in between two pattern, and generate a tab

Hi all, I'm looking for some help. I have a file (very long) that is organized like below: >Cluster 0 0 283nt, >01_FRYJ6ZM12HMXZS... at +/99% 1 279nt, >01_FRYJ6ZM12HN12A... at +/99% 2 281nt, >01_FRYJ6ZM12HM4TS... at +/99% 3 283nt, >01_FRYJ6ZM12HM946... at +/99% 4 279nt,... (4 Replies)
Discussion started by: d.chauliac
4 Replies

4. Shell Programming and Scripting

Keep lines with specific words up in an order

I hava a file with following data: number|CREDIT_ID|NULL date|SYS_CREATION_DATE|NULL varchar2|GGS_COMMIT_CHAR|NULL varchar2|GGS_OP_TYPE|NULL number|GGS_SCN|NULL| number|GGS_LOG_SEQ|NULL number|GGS_LOG_POS|NULL number|GGS_ORACREC_SCN|NULL varchar2|BATCH_ID|NULL char|GGS_IMAGE_TYPE|NULL ... (6 Replies)
Discussion started by: kolesunil
6 Replies

5. Shell Programming and Scripting

Finding lines matching the Pattern and their previous lines in a file

Hi, I am trying to locate the occurences of certain pattern like 'Possible network disconnect' in a text file. I can get the actual lines matching the pttern using: grep -w 'Possible network disconnect' file_name. But I am more interested in getting the timing of these events which are... (7 Replies)
Discussion started by: sagarparadkar
7 Replies

6. UNIX for Dummies Questions & Answers

Extract lines with specific words with addition 2 lines before and after

Dear all, Greetings. I would like to ask for your help to extract lines with specific words in addition 2 lines before and after these lines by using awk or sed. For example, the input file is: 1 ak1 abc1.0 1 ak2 abc1.0 1 ak3 abc1.0 1 ak4 abc1.0 1 ak5 abc1.1 1 ak6 abc1.1 1 ak7... (7 Replies)
Discussion started by: Amanda Low
7 Replies

7. Shell Programming and Scripting

Find all matching words in text according to pattern

Hello dear Unix shell professionals, I am desperately trying to get a seemingly simple logic to work. I need to extract words from a text line and save them in an array. The text can look anything like that: aaaaaaa${important}xxxxxxxx${important2}ooooooo${importantstring3}...I am handicapped... (5 Replies)
Discussion started by: Grünspanix
5 Replies

8. Shell Programming and Scripting

Sed: printing lines AFTER pattern matching EXCLUDING the line containing the pattern

'Hi I'm using the following code to extract the lines(and redirect them to a txt file) after the pattern match. But the output is inclusive of the line with pattern match. Which option is to be used to exclude the line containing the pattern? sed -n '/Conn.*User/,$p' > consumers.txt (11 Replies)
Discussion started by: essem
11 Replies

9. UNIX for Dummies Questions & Answers

Grep -v lines starting with pattern 1 and not matching pattern 2

Hi all! Thanks for taking the time to view this! I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern. Example: Drink a soda Eat a banana Eat multiple bananas Drink an apple juice Eat an apple Eat multiple apples I... (8 Replies)
Discussion started by: demmel
8 Replies

10. Shell Programming and Scripting

Grep only words containing specific string

Hello, I have two files. All urls are space seperated. source http://xx.yy.zz http://df.ss.sd.xz http://09.09.090.01 http://11.22.33 http://canada.xx.yy http://01.02.03.04 http://33.44.55 http://98.87.76.65 http://russia.xx.zz http://aa.tt.xx.zz http://1w.2e.3r.4t http://china.rr.tt ... (4 Replies)
Discussion started by: baris35
4 Replies

LEARN ABOUT CENTOS

grub2-mkrescue

GRUB-MKRESCUE(3)					     Library Functions Manual						  GRUB-MKRESCUE(3)

NAME

       grub-mkrescue -- Generate a GRUB rescue image using GNU Xorriso.

SYNOPSIS

       grub-mkrescue [-o | --output=FILE] [--modules=MODULES]
		      [--install-modules=MODULES] [--themes=THEMES]
		      [--fonts=FONTS] [--locales=LOCALES]
		      [--compress[=no,xz,gz,lzo]] [-d | --directory=DIR]
		      [--grub-mkimage=FILE] [--rom-directory=DIR]
		      [--xorriso=FILE] [--grub-glue-efi=FILE]
		      [--grub-render-label=FILE] [--label-font=FILE]
		      [--label-color=COLOR] [--label-bgcolor=FILE]
		      [--product-name=STRING] [--product-version=STRING]
		      [--sparc-boot] [--arcs-boot]

DESCRIPTION

       grub-mkrescue can be used to generate a rescue image with the GRUB bootloader.

OPTIONS

       --output=FILE
	      Write the generated file to FILE.  The default is to write to standard output.

       --modules=MODULES
	      Pre-load modules specified by MODULES.

       --install-modules=MODULES
	      Install only MODULES and their dependencies.  The default is to install all available modules.

       --themes=THEMES
	      Install THEMES.  The default is to install the starfield theme, if available.

       --fonts=FONTS
	      Install FONTS.  The default is to install the unicode font.

       --locales=LOCALES
	      Install only locales listed in LOCALES.  The default is to install all available locales.

       --compress[=no,xz,gz,lzo]
	      Compress GRUB files using the specified compression algorithm.

       --directory=DIR
	      Use images and modules in DIR.

       --grub-mkimage=FILE
	      Use FILE as grub-mkimage(1).  The default is /usr/bin/grub-mkimage.

       --rom-directory=DIR
	      Save ROM images in DIR.

       --xorriso=FILE
	      Use FILE as xorriso.

       --grub-glue-efi=FILE
	      Use FILE as grub-glue-efi(3).

       --grub-render-label=FILE
	      Use FILE as grub-render-label(3).

       --label-font=FILE
	      Use FILE as the font file for generated labels.

       --label-color=COLOR
	      Use COLOR as the color for generated labels.

       --label-bgcolor=COLOR
	      Use COLOR as the background color for generated labels.

       --product-name=STRING
	      Use STRING as the product name in generated labels.

       --product-version=STRING
	      Use STRING as the product version in generated labels.

       --sparc-boot
	      Enable booting the SPARC platform.  This disables HFS+, APM, ARCS, and "boot as disk image" on the i386-pc target platform.

       --arcs-boot
	      Enable  ARCS  booting.  This is typically for big-endian MIPS machines, and disables HFS+, APM, sparc64, and "boot as disk image" on
	      the i386-pc target platform.

       --     All options after a -- will be passed directly to xorriso's command line when generating the image.

SEE ALSO

       info grub

								  Wed Feb 26 2014						  GRUB-MKRESCUE(3)
All times are GMT -4. The time now is 01:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy