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So I want to match all below then remove those lines of string.

[MTT-5634](https://my.atlassian.net/browse/MTT-5634) [MCC-123](https://my.atlassian.net/browse/MCC-123) [MTT-7965]: https://my.atlassian.net/browse/MTT-7965 https://my.atlassian.net/browse/MTT-7965

I have tried

sed -e 's/\[(MTT|MCC)-[0-9]{3,4}\?]\?://g;s!.\?http[s]\?://\S*!!g' input.txt > output.txt
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  • Please edit your question and show us more examples, including both lines that should be kept and lines that should be deleted. You seem to also want to find MCC- and apparently can have a variable list of numbers, but what else? And do you want to delete the line or keep it as an empty line?
    – terdon♦
    CommentedOct 10, 2022 at 10:15
  • I have updated it, to make more sense @terdon
    – Beelzebub
    CommentedOct 12, 2022 at 1:51

1 Answer 1

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You didn't enable the -Extended regex, so you will need to escape a few special character such as (, ), |, {, }, ?. You also have a trailing : in your first sed statement that should be removed. Also, you forgot to escape the closing bracket ].

Your own corrected (but not improved) command should be:

sed -e 's/\[\(MTT\|MCC\)-[0-9]\{3,4\}\?\]\?//g;s!.\?http[s]\?://\S*!!g' infile

See What characters do I need to escape when using sed in a sh script?

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  • hello so -e and -E not same? Sorry I got confused
    – Beelzebub
    CommentedOct 10, 2022 at 8:50
  • @Beelzebub Hello. Of course they are not. see man sed for description of each.
    – αғsнιη
    CommentedOct 10, 2022 at 11:51

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