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Adler Neves
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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