Is that the entire script? On top of variables used for calculations being undefined, I see syntactical errors as well as questionable formulae yielding values > 100% for e.g. memory utilization.
In principle, yes. However, inside the ((...)) ("arithmetic expansion") you don't need the $ , see e.g. man bash.
But, you have picked the perfect line to illustrate what I was talking about:
To produce a value to be assigned to mem_utalization, you use (the deprecated `...` version of) "command substitution" which is the standard output of the command. Your command is a variable assignment (sum=...). What is the stdout of a variable assignment? Nothing! So, mem_utalization is empty.
The next one is $mem_total/($mem_total - $mem_available) which will result in a value above 100% given all values used are positive. Is that what you want?
In your above script you're running free, grep, and awk umpteen times, each causing a (costly) process creation - why not do it all in a single pass? Try
without assessing your interpretation of free's numbers / columns. You can even have the distinction between various linux versions done in that one small awk script ...
Hi Team,
I have written the shell script which returns the result of the disk space filesystems which has crossed the threshold limit in HTML Format. Below mentioned is the script which worked perfectly on QA system.
df -h | awk -v host=`hostname` '
BEGIN {
print "<table border="4"... (13 Replies)
Hi All,
I currently have a shell script which is pulling multiple counters from various sources. Due to the counters being cumulative counters I've got some code to work out the delta from the last reading and current which is working fine.
The problem i have now is being able to work out the... (8 Replies)
I have run the utility nmon in aix 6.1, and found memory utilization is 99.9% in physical.
and pressed h key and then t , in that it is not showing single process which is consuming memory resources. please help me how to find out actual memory utilization.
wheather 99% is real memory... (1 Reply)
I am running the command /usr/bin/free -b | awk '/Mem:|cache:/ {print $2,$3}' | sed 'N;s/\n/ /' | awk '{print ($4*100)/$1}' to find out Memory utilization,
it is showing 205%, please suggest me what changes are required, below is output of free -b command.
$ free -b
total ... (2 Replies)
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Hi Experts,
Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing.
Why memory utilization on solaris always looks high?
I have statement about memory on solaris, is this true:
Memory in solaris is used for... (4 Replies)
Hello All,
I am trying to create a script that will give me the processes that consume swap in %.
i am using the below line to get it done.
virtual=`echo "$virtual/$swp*100"|bc -l|sed -e "s/\(\.\).*/\1/g"`
but getting the following output after running it.
.039
.110
I want the... (3 Replies)
Hi there,
I am totally new to Unix, I am trying to work out the percentage between two values in a ksh shell script and assign the result to a variable.
Value1=577
Values2=244
So the calculation would be as follows:
((Value1 - Value2) / Value1) * 100
How would I be able to achieve... (2 Replies)
Using HP-UX v11
Need to monitor cpu and memory usage, total for system and separately for each user in command-line mode.
Found out next ways to monitor total cpu usage under hp-ux:
1) vmstat, also shows free memory
2) sar -M
ps -eo user,pcpu - does not work, means 'user-defined format'... (4 Replies)