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Linux Shell Scripting Cookbook by Sarath Lakshman

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Remote disk usage health monitor

A network consists of several machines with different users. The network requires centralized monitoring of disk usage of remote machines. The system administrator of the network needs to log the disk usage of all the machines in the network every day. Each log line should contain details such as the date, IP address of the machine, device, capacity of the device, used space, free space, percentage usage, and health status. If the disk usage of any of the partitions in any remote machine exceeds 80 percent, the health status should be set to ALERT, else it should be set to SAFE. This recipe will illustrate how to write a monitoring script that can collect details from remote machines in a network.

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