35 lines
726 B
Markdown
35 lines
726 B
Markdown
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# free-memory-cmd
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Runs a command if memory usage exceeds a certain threshould.
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Memory usage can be RAM, SWAP, or both combined.
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## Usage
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```
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free-memory-cmd <RAM|SWAP|COMB> <percentage> <command>
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```
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### Examples
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* Reboot if using over 80% of SWAP.
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```sh
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free-memory-cmd SWAP 80 reboot
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```
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* Check if RAM usage is over 60% within a shell script
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```sh
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free-memory-cmd RAM 60 './my-memory-saving-measures.sh'
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```
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* Check if RAM usage is over 60% within a shell script
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```sh
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if ! free-memory-cmd RAM 60 false ; then
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# do your "over 60% RAM usage" thing here
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fi
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```
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### Crontab
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It's perfectly possible to write jobs like:
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```cron
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* * * * * free-memory-cmd COMB 50 reboot
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```
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