system parameter values on Red Hat Linux - Linux

asutoshch · #1 (**permalink**) 04-08-2008

I am making a shell script that will display memory, disk space and CPU utilization at periodic intervals. I am planning to use free, df -h and mpstat commands and then parse them to extract the values. Can someone give me idea if I am using the correct command. I am interested to display overall (considering all the processes running on the Linux box) memory status, disk space and CPU utilization of a particular Linux box that is running Red Hat OS.

sysgate · #2 (**permalink**) 04-08-2008

I think the answer is yes, those are suitable commands to query, log the response and parse later. mpstat and every sar related command prints overall stats, like :
sar -u 2 5

Quote:

02:59:51 PM CPU %user %nice %system %iowait %steal %idle
02:59:53 PM all 3.00 0.00 1.50 0.00 0.00 95.50
02:59:55 PM all 2.51 0.00 1.01 0.00 0.00 96.48
02:59:57 PM all 12.87 0.00 2.97 0.00 0.00 84.16
02:59:59 PM all 3.54 0.00 1.52 0.00 0.00 94.95
03:00:01 PM all 3.98 0.00 2.49 0.00 0.00 93.53
Average: all 5.20 0.00 1.90 0.00 0.00 92.90

asutoshch · #3 (**permalink**) 04-09-2008

Thanks a lot.

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