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Need script to monitor open file in Linux

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Need script to monitor open file in Linux

Kindly advice with shell script to monitor open file in linux, if the open file count is greater then 5000 then send me an email..

command : lsof | wc -l
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OCF_HEARTBEAT_NFSSER(7) 					OCF resource agents					   OCF_HEARTBEAT_NFSSER(7)

ocf_heartbeat_nfsserver - Manages an NFS server
nfsserver [start | stop | monitor | meta-data | validate-all]
Nfsserver helps to manage the Linux nfs server as a failover-able resource in Linux-HA. It depends on Linux specific NFS implementation details, so is considered not portable to other platforms yet.
nfs_init_script The default init script shipped with the Linux distro. The nfsserver resource agent offloads the start/stop/monitor work to the init script because the procedure to start/stop/monitor nfsserver varies on different Linux distro. (optional, string, default /etc/init.d/nfsserver) nfs_notify_cmd The tool to send out NSM reboot notification. Failover of nfsserver can be considered as rebooting to different machines. The nfsserver resource agent use this command to notify all clients about the happening of failover. (optional, string, default /usr/sbin/sm-notify) nfs_shared_infodir The nfsserver resource agent will save nfs related information in this specific directory. And this directory must be able to fail-over before nfsserver itself. (required, string, no default) nfs_ip The floating IP address used to access the nfs service (required, string, no default)
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 40. stop Stops the resource. Suggested minimum timeout: 20s. monitor Performs a detailed status check. Suggested minimum timeout: 20s. Suggested interval: 10. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 30.
The following is an example configuration for a nfsserver resource using the crm(8) shell: primitive example_nfsserver ocf:heartbeat:nfsserver params nfs_shared_infodir=string nfs_ip=string op monitor depth="0" timeout="20s" interval="10"
Linux-HA contributors (see the resource agent source for information about individual authors) resource-agents 1.0.3 07/05/2010 OCF_HEARTBEAT_NFSSER(7)

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