cat /proc/meminfo free -m

imconnector@linux:~/im_connector/imconnector> cat /proc/meminfo
MemTotal:     49370468 kB
MemFree:        308008 kB
Buffers:        202792 kB
Cached:         496248 kB
SwapCached:          0 kB
Active:       14281576 kB
Inactive:       513220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     49370468 kB
LowFree:        308008 kB
SwapTotal:    33559744 kB
SwapFree:     33559744 kB
Dirty:             364 kB
Writeback:           0 kB
AnonPages:    14095228 kB
Mapped:          29020 kB
Slab:         11105100 kB
CommitLimit:  58244976 kB
Committed_AS: 14512360 kB
PageTables:      31076 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    290660 kB
VmallocChunk: 34359447639 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB
imconnector@linux:~/im_connector/imconnector> free -m
             total       used       free     shared    buffers     cached
Mem:         48213      47912        300          0        198        484
-/+ buffers/cache:      47230        983
Swap:        32773          0      32773
imconnector@linux:~/im_connector/imconnector>