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I have a directory dash7/ which contains multiple text files and I want to remove all lines containing the string D PRINT from all those files.

How can I do that easily from the command-line?

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    thanks.i have used "find . -type f -print0 | xargs -0 sed -i /KeyWord/d" and its working.thank you. – KISHAN Dec 29 '16 at 10:17
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    @KISHAN Would you please consider writing an answer to your own question, so that future readers will be able to easily profit from what you found out? Thanks. – Byte Commander Dec 29 '16 at 11:06
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You can achieve this rather easily with sed which can happily look into multiple files

sed '/D PRINT/d' dash7/*
  • /D PRINT/ find a line with D PRINT
  • d delete the line
  • dash7/* look in all the files in the directory dash7 (add the path to it, for example ~/dash7 if required)

To actually change the files rather than print the edited text in the terminal, you need to add the -i flag to modify in place

sed -i '/D PRINT/d' dash7/*
  • thanks for suggestion,i hv used " find . -type f -print0 | xargs -0 sed -i /KeyWord/d" and its working.thank you. – KISHAN Dec 30 '16 at 11:26
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    @KISHAN yes you mentioned that, but I added my answer to help others. You can also help others by posting your solution as an answer to your question instead of a comment :) – Zanna Dec 30 '16 at 12:10

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