add command line
add command line

wenhuizhang/dist-sys-exercises,hantasm/dist-sys-exercises,phanikishoreg/dist-sys-exercises,YuanGao0702/dist-sys-exercises,wenhuizhang/dist-sys-exercises,syftalent/dist-sys-exercises-1,wenhuizhang/dist-sys-exercises,YuanGao0702/dist-sys-exercises,guoluona/dist-sys-exercises,finger92/dist-sys-exercises,gwDistSys15/dist-sys-exercises,wenhuizhang/dist-sys-exercises,finger92/dist-sys-exercises,hantasm/dist-sys-exercises,Mruganka/dist-sys-exercises,maotongxu/lec3,syftalent/dist-sys-exercises-1,gwDistSys15/dist-sys-exercises,lilihao2014/dist-sys-exercises,syftalent/dist-sys-exercises-1,gwDistSys15/dist-sys-exercises,syftalent/dist-sys-exercises-1,lilihao2014/dist-sys-exercises,syftalent/dist-sys-exercises-1,maotongxu/dist-sys-exercises,wenhuizhang/dist-sys-exercises,onorzq/dist-sys-exercises,tstamler/dist-sys-exercises,gwDistSys15/dist-sys-exercises,finger92/dist-sys-exercises,guoluona/dist-sys-exercises,tstamler/dist-sys-exercises,wenhuizhang/dist-sys-exercises,gwDistSys15/dist-sys-exercises,onorzq/dist-sys-exercises,phanikishoreg/dist-sys-exercises,tstamler/dist-sys-exercises,maotongxu/lec3,guoluona/dist-sys-exercises,Mruganka/dist-sys-exercises,maotongxu/lec3,syftalent/dist-sys-exercises-1,syftalent/dist-sys-exercises-1,gwDistSys15/dist-sys-exercises,syftalent/dist-sys-exercises-1,hantasm/dist-sys-exercises,phanikishoreg/dist-sys-exercises,syftalent/dist-sys-exercises-1,maotongxu/dist-sys-exercises,YuanGao0702/dist-sys-exercises,onorzq/dist-sys-exercises,maotongxu/dist-sys-exercises,Mruganka/dist-sys-exercises,lilihao2014/dist-sys-exercises