Erm, GNU is doing the "innovation" here, i.e. adding spurious new flags and options. Which got quite annoying back in the days when I had to work with other com

Erm, GNU is doing the "innovation" here, i.e. adding spurious new flags and options. Which got quite annoying back in the days when I had to work with other commercial Unices and still hits me from time to time on BSDs (including OS X). Anyone still remember /usr/ucb/bin?