Thanks for your report. We are confirming this because from the mawk manual "AWK uses extended regular expressions as with egrep" and character classes are defined in POSIX.2 which is said to be supported by mawk.
** Changed in: mawk (Ubuntu) Status: New => Confirmed -- Mawk does not support Posix character classes in expressions https://bugs.launchpad.net/bugs/69724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs