Remove all entries from file containing a substring?

[Mousikos]

Hey so I pull my nicknameblacklist from somewhere but they have exceptions to clans that seem to cause trouble. Is there anyway to remove them with, say, a sed command?

[+f0r3v3r+]

There is surely a way depending on what you are hoping to achieve...
http://www.grymoire.com/Unix/Sed.html
But maybe there is something I can help you with more directly, Mousikos?

[RandumKiwi]

Hey so I pull my nicknameblacklist from somewhere but they have exceptions to clans that seem to cause trouble. Is there anyway to remove them with, say, a sed command?

Grep is perfect for this scenario: grep -viE '(PATTERN1|PATTERN2|PATTERN3)' FILE > OUTPUTFILE

-v = only show entries that don't match the text
-E = regular expression, allows you to search for multiple patterns as per my example above.
-i = case insensitive

[Mousikos]

There is surely a way depending on what you are hoping to achieve...
http://www.grymoire.com/Unix/Sed.html
But maybe there is something I can help you with more directly, Mousikos?

Nah, I have stricter connect rules than you do --- I don't allow clans that allow double clans.