free-memory-cmd/README.md

free-memory-cmd

Runs a command if memory usage exceeds a certain threshould.

Memory usage can be RAM, SWAP, or both combined.

Usage

free-memory-cmd <RAM|SWAP|COMB> <percentage> <command>

Examples

• Reboot if using over 80% of SWAP.

  free-memory-cmd SWAP 80 reboot
  

• Check if RAM usage is over 60% within a shell script

  free-memory-cmd RAM 60 './my-memory-saving-measures.sh'
  

• Check if RAM usage is over 60% within a shell script

  if ! free-memory-cmd RAM 60 false ; then
      # do your "over 60% RAM usage" thing here
  fi
  

Crontab

It's perfectly possible to write jobs like:

* * * * * free-memory-cmd COMB 50 reboot