itwbennett writes "In a notice posted Thursday on the customer support section of its website, Sprint said it would impose monthly data caps on plans for all tablets, laptops, netbooks, USB and PC Card modems, and mobile hotspot devices — everything, that is, except smartphones. The caps will begin with each subscriber's next bill following notification, the carrier said."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals