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06-05-2008
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grep problem
Example:
bash  wd/home/balamv bash:more test.txt hello hello-ssl welcome welcome-ssl hi bye bye-ssl seeyou I want to get all the lines which contain ssl and also the one does not contain ssl. Output should be like this. hello-ssl welcome-ssl hi bye-ssl seeyou Note if a line [ex. hello] has the ssl line, then get only ssl. How to achieve this? |
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06-05-2008
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It's not really a grep problem, per se. Code:
sed -n 's/-ssl$//p' test.txt | fgrep -vxf - test.txt This finds all the -ssl lines, and removes the -ssl suffix, then removes any lines matching any of these lines (-ssl lines with the -ssl suffix removed) from the original file. |
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06-05-2008
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No need to shout. What output did you get? The only possible problem I see with eras solution is if there is extra space after the "-ssl", but a slight modification fixes that: Code:
sed -n 's/-ssl\s*$//p' test.txt | fgrep -vxf - test.txt |
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06-05-2008
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\s is not a standard sed expression; you could use space and tab inside [ ] brackets instead. But I don't see any trailing spaces in the original example. If there are significant spaces, please use code tags when posting a sample.
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