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letsspeak/centos_memory_usage_one_liner

Last active December 15, 2015 14:29
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centos memory usage one liner
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centos_memory_usage_one_liner
// memory usage percent (integral)
free | awk 'NR==2' | awk '{print int($3/$2*100)}'
// actual memory usage (integral)
// http://open-groove.net/linux-command/free/
free | awk 'NR==2' | awk '{print int(($3-($6+$7))/$2*100)}'
// swap memory usage percent (integral)
free | awk 'NR==4' | awk '{print int($3/$2*100)}'
// total memory usage percent (integral)
free -t | awk 'NR==5' | awk '{print int($3/$2*100)}'
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