Re^2: grep for lines containg two variables

Just a couple of queries...

What if one string is contained in the other but should not be counted?
Ok so add white space checks/breaks to the search strings.

Do you need to lookahead on both strings? This seems to work.

@interesting_lines = grep /(?=.*$string1).*$string2/,@log;
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Re^3: grep for lines containg two variables by ikegami (Patriarch) on Dec 08, 2005 at 15:07 UTC
What if one string is contained in the other but should not be counted? That's tricky. Do you really want that? I don't have the time right now to spend the effort on a what-if you won't use. Do you need to lookahead on both strings? No, it's optional on the last one. If you had 4 strings, you'd need the lookahead on the first three, but it would be optional on the fourth.	[reply]
Re^4: grep for lines containg two variables by tweetiepooh (Hermit) on Dec 08, 2005 at 16:27 UTC
Nah I don't want any of it, just commenting. If you are looking for whole words then you could use spaces around your searches but else it would be a real pain I'd agree.	[reply]
Re^3: grep for lines containg two variables by ikegami (Patriarch) on Dec 08, 2005 at 18:16 UTC
What if one string is contained in the other but should not be counted? How about `grep /$string1.$string2\|$string2.$string1/,` [download]	[reply] [d/l] [select]