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I want to use grep in the following way:

grep -v "END","EXPDTA" 1bmz_model1.pdb > 1bmz_model.pdb

I want the grep command to remove the lines which contain the words "END" and "EXPDTA", but all i get in the output, is a copy of the original file. The command works fine when I try to search and remove with a single word, but not with two words.

  • Is that really an AND or an OR? – Paul Oct 27 '11 at 12:15
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egrep -v "END|EXPDTA" infile > outfile
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    Of course, if one is using egrep, one can fulfil the questioner's desire of removing lines with words that match, rather than everything that happens to have the three characters "END" within a larger word. ☺ – JdeBP Oct 27 '11 at 14:11
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    grep could do that too with grep -v -e END -e EXPDTA .... – ott-- Oct 27 '11 at 15:27
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    Could you provide some explanation about what your code does? – Tamara Wijsman Oct 31 '11 at 21:20
  • -v, --invert-match, Invert the sense of matching, to select non-matching lines. – Michael S. Feb 14 '12 at 11:24
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    man grep is your friend. – Michael S. Feb 14 '12 at 11:25

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