* Dan Muresan <[email protected]> [2011-03-10 19:41]: > Hi, is there some consensus on whether shift should cause a "fatal > error" as reported by Herbert against bash: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=252378 > > # doesn't print anything > dash -c 'shift 2; echo hi' > > My copy of SUSv3 doesn't seem to imply any "fatal error" handling > requirement for shift: > > --- 8-X --- > EXIT STATUS > > The exit status is >0 if n>$#; otherwise, it is zero. > > CONSEQUENCES OF ERRORS > > Default. > --- 8-X ---
For IEEE Std 1003.1-2008 see section 2.8.1 "Consequences of Shell Errors": a "utility syntax error (option or operand error)" with special built-ins shall cause the shell to exit. That's what dash, ksh93, and pdksh do. -- Guido Berhoerster -- To unsubscribe from this list: send the line "unsubscribe dash" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
