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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

 

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COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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