Question: How to check how much memory you have available on Ubuntu (Linux)?

 

Answer:

  1. Open a Terminal Window if not yet in command line
  2. Type in the following command: cat /proc/meminfo
  3. This will display a resultset as below of how much memory you have left
MemTotal:        1974152 kB
MemFree:          373196 kB
Buffers:          107380 kB
Cached:           881568 kB
SwapCached:        13288 kB
Active:           872248 kB
Inactive:         640876 kB
Active(anon):     599548 kB
Inactive(anon):    25012 kB
Active(file):     272700 kB
Inactive(file):   615864 kB
Unevictable:           8 kB
Mlocked:               8 kB
HighTotal:       1103016 kB
HighFree:           1612 kB
LowTotal:         871136 kB
LowFree:          371584 kB
SwapTotal:       2493588 kB
SwapFree:        2461148 kB
Dirty:                72 kB
Writeback:             0 kB
AnonPages:        514288 kB
Mapped:           122972 kB
Slab:              50072 kB
SReclaimable:      32964 kB
SUnreclaim:        17108 kB
PageTables:         5136 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     3480664 kB
Committed_AS:    2313760 kB
VmallocTotal:     122880 kB
VmallocUsed:       23780 kB
VmallocChunk:      93580 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       4096 kB
DirectMap4k:       16376 kB
DirectMap4M:      888832 kB
 

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