Currently, I use
egrep --color 'error|$'
to highlight every word in a line containing the word error:
I would like to highlight the entire line though so that the entire string appears in red.
How can I achieve that?
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@don_crissti I also want to see the lines not matching the pattern. – k0pernikus Dec 15 '16 at 11:59
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yeah, I got it... see the suggested duplicate and also [How to have tail -f show colored output](http://unix.stackexchange.com/q/8414) – don_crissti Dec 15 '16 at 12:00
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1`grep -E --color '.*error.*|^'` – Costas Dec 15 '16 at 12:30
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@Costas Exaclty what I was looking for. Please provide as answer, bonus point for explaining why it does what it does :) – k0pernikus Dec 15 '16 at 13:28
1 Answers
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To highlight the complete line, you should expand the regex so that it includes all (if any) characters before and after the desired term. Do this by prepending and appending .* to the term being searched for:
echo "foo bar error baz" | egrep --color '.*error.*|$'
Anthony Geoghegan
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This will hide the other content not matching the pattern. I want to keep it. – k0pernikus Dec 15 '16 at 13:28
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@k0pernikus Sorry, I omitted the `|$` in the regex while testing. I've fixed that now. – Anthony Geoghegan Dec 15 '16 at 15:33