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Match a URL

Terminal - Match a URL
cho "(Something like http://foo.com/blah_blah)" | awk '{for(i=1;i<=NF;i++){if($i~/^(http|ftp):\/\//)print $i}}'
2009-11-28 03:31:41
Functions: awk
-1
Match a URL

don't have to be that complicated

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
egrep 'https?://([[:alpha:]]([-[:alnum:]]+[[:alnum:]])*\.)+[[:alpha:]]{2,3}(:\d+)?(/([-\w/_\.]*(\?\S+)?)?)?'
2009-11-28 15:41:42
User: putnamhill
Functions: egrep
5

For the record: I didn't build this. Just shared what I found that worked. Apologies to the original author!

I decided I should fix the case where http://example.com is not matched for the next time I need this. So I read rfc1035 and formalized the host name regex.

If anyone finds any more holes, please comment.

echo "(Something like http://foo.com/blah_blah)" | grep -oP "\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))"

Know a better way?

If you can do better, submit your command here.

What others think

This doesn't even work.

matthew> echo "(Something like http://foo.com/blah_blah)" | awk '{for(i=1;i<=NF;i++){if($i~/^(http|ftp):\/\//)print $i}}' http://foo.com/blah_blah)
Comment by matthewbauer 243 weeks and 2 days ago

@matthewbauer: it almost works:

echo "(Something like

output:

http://foo.com/blah_blah)

@unixmonkey7109: it shouldn't be printing that right parenthesis, and if you've got ftp, why not add https?

Comment by nickleus 242 weeks and 6 days ago

oops look like code in my comment got dropped...

Comment by nickleus 242 weeks and 6 days ago

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