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This plugin works nicely with very good looking pnp charting support. Only problems I had were not related to the code itself.

The check_mem.sh script download comes in a weird encoding that does not work in Linux.

check_mem.sh: UTF-8 Unicode (with BOM) text, with CRLF line terminators

I didn't feel like looking around to convert this so I just cat the file and pasted into a new file, which worked fine.

Also note that the pnp template file, check_nrpe_memory.php, should be moved to /etc/pnp4nagios/templates or where your pnp configs are set to. Also unless you name the check nrpe_memory, you're going to have to rename the file to check_.php

Thanks for the great plugin and pnp template.