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Full Discussion: How to remove answers and explanation parts from a text file with lots of questions.?
Top Forums Shell Programming and Scripting How to remove answers and explanation parts from a text file with lots of questions.? Post 303041672 by MadeInGermany on Monday 2nd of December 2019 05:24:39 AM
Old 12-02-2019
To avoid an initial newline one can test for NR>1 or del==1:
Code:
awk '/^Answer:/{del=1} (del==1 && /^NO\./){del=0; print ""} del==0' test.txt

Here comes a portable sed solution:
Code:
sed '/^Answer:/{
  :Loop
  $d; N; /\nNO\./!bLoop
  s/.*\(\n\)/\1/
}' test.txt

GNU sed needs $d, to not default-print the last "Answer:" section.
A multi-liner easiliy supports a Unix sed.
This User Gave Thanks to MadeInGermany For This Post:
prvnrk
 

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LEARN ABOUT OSX

pvremove

PVREMOVE(8)						      System Manager's Manual						       PVREMOVE(8)

NAME

       pvremove - remove a physical volume

SYNOPSIS

       pvremove  [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--version] [-f[f]|--force [--force]] [-y|--yes] PhysicalVolume [PhysicalVol-
       ume...]

DESCRIPTION

       pvremove wipes the label on a device so that LVM will no longer recognise it as a physical volume.

OPTIONS

       See lvm(8) for common options.

       -ff, --force --force
	      Force the removal of a physical volume belonging to an existing volume group.  Normally vgreduce(8) should be used instead  of  this
	      command.	You cannot remove a physical volume which in use by some active logical volume.

       -y, --yes
	      Answer yes to all questions.

SEE ALSO

       lvm(8), pvcreate(8), pvdisplay(8), vgreduce(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       PVREMOVE(8)
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