Comment 14 for bug 15051

pcregrep is not a valid option, but glark certainly is. Either, however, is an alternative (they don't have the same syntax, and they don't have the same features), _not_ a solution, and either way, the man page is still an issue, as well as compatibility problems which Steve addresses. Paul's proposition was:

>Proposed fix (without breaking boot):

>By default, in ubuntu, /usr/bin preceded /bin in the path. So install grep without -P (no libpcre) in /bin during boot.

>Then install grep with -P (with libpcre) in /usr/bin, once /usr is mounted.

Is this doable? While this may be difficult, the alternative is to have a modified man page for grep, /and/ a patch for grep which removes -P from the help listings, and still not have -P