Delete Previous Line if Current Line Contains Particular Keyword

In UNIX delete previous line if current line contains particular keyword
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SWETA SANWAL

  • Jan 12th, 2017
 

sed -n /pattern/{x;d;};1h;1!{x;p;};${x;p;} <>

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sambasivarao

  • May 25th, 2017
 

grep -v "$(grep -B1 | head -1)"

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Yogesh

  • Aug 31st, 2017
 

grep-B1 "particularword" filename | rm

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Mahender Lal

  • Sep 2nd, 2017
 

prev_line=`grep -B1 "Keyword_to_search" filename | head -1` ; grep -v "$prev_line" filename
prev_line=`grep -B1 "Keyword_to_search" filename | head -1` ; grep -v "$prev_line" filename > newfile

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