Linux显示一行显示列总计

youhaidong@youhaidong-ThinkPad-Edge-E545:~$ free -t
             total       used       free     shared    buffers     cached
Mem:       3103064    1608344    1494720       7872      67432     652132
-/+ buffers/cache:     888780    2214284
Swap:      3998716          0    3998716
Total:     7101780    1608344    5493436
youhaidong@youhaidong-ThinkPad-Edge-E545:~$ free --total
             total       used       free     shared    buffers     cached
Mem:       3103064    1608840    1494224       7872      67432     652132
-/+ buffers/cache:     889276    2213788
Swap:      3998716          0    3998716
Total:     7101780    1608840    5492940