Damien1972 writes: A new study finds that self-described Republicans are less skeptical of "climate change" than "global warming". The research, conducted by psychologists at the University of Michigan, found that 44 percent of Republicans endorsed the idea that "global warming" is real, whereas 60 percent believed in "climate change." Among self-described Democrats the difference in wording was negligible: 86.9 percent vs. 86.4 percent.
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals