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bash script for cpu, memory, tcp connection

Posted on 2011-03-14
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Last Modified: 2012-06-27
Hi,

I need a bash script that could perform/ check the following on a Linux server,

1. CPU usage with top consuming processes
2. Memory allocation vs Memory available
3. I/O connection
4. TCP connections to apache
5. TCP connectons to Mysql
6. quick health check of mysql db.

would be helpful needed one bash script for above situation.

thanks in advance
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Question by:luser9999
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farzanj earned 250 total points
ID: 35130569
Top two consuming processes
top -b -n1 | head -10 | tail -2

Memory Usage with top two consuming processes
top -b -n1 | head -10

Memory available vs. memory allocation
free -m

I/O connection
iostat or netstat -anptu

TCP connections to apache
netstat -entd | grep -i http

TCP connection for mysql
netstat -entd | grep -i mysql

If you want to include listening also, do netstat -antd, -entd would do established connections only

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by:mccracky
mccracky earned 250 total points
ID: 35130944
If this is an ongoing concern, I'd set up cacti to constantly monitor and graph it.  But, rather than bash, it uses snmp.  See: http://www.cacti.net/
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by:luser9999
ID: 35276374
thanks
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