USAGE:   2up [-poutfile] [file]
For example,
newton> 2up -pnewfile.ps oldfile.ps newton> 2up < oldfile.ps > newfile.ps newton> 2up < yourfile.ps | lp (direct to printer)(The command ``psnup'' is a generalization of 2up, and has a normal manual page. The command ``2upframe'' is an enhancement of 2up which draws a frame around both of the reduced-size pages printed on each sheet.)