05-26-2009
Shell script to display top 5 process (per cpu consumption)
Hello,
I have to create shell script being myself real novice in scripting...
I was looking on the Internet for some script examples, but I don't have the basic understanding of the shell. I was trying to do something with “ps” command without success.
For exemple total number of running process: ps ax | wc -l | tr -d ""
Executed from command line work nice, but once in the script like echo ‘ps ax | wc -l | tr -d ""' return 1 which is not the right number of running process.
The script should do the following:
- Should check the running processes
- Display top five process (per cpu consumption)
- output the summary for:
- total number of processes
- number of process per user
- most common process
ex.: process1
process2
process3
process1
result : process1
I
s it too difficult to implement in pure bash script?
Many thanks in advance for any help.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hello experts,
I am writing an application in Solaris, which is supposed to work on PrimePower 650 and SunFire 440 machines. The application listens to the events raised by the Hardware and OS in /dev/log. The application listens to the messages logged into /dev/log and do some processing on... (3 Replies)
Discussion started by: pleaseteachmeun
3 Replies
2. SCO
Hi everyone,
I have a problem on sco unixware 7.1.4
a Ghost process is consuming cpu usage.
rtpm
cpu 0 ======---------
cpu 1 ===---------------------
cpu 2 ============================================================-----------
cpu 3 ... (1 Reply)
Discussion started by: neal.opperman
1 Replies
3. Shell Programming and Scripting
hi,
i hav a script which processes 1000 files one by one in every run jus for searching their corresponding output files at a given path, due to this my script runs for long time and taking more CPU,
can we have any way in which we can have this check at least 100 files in a single shot... (5 Replies)
Discussion started by: Prateek007
5 Replies
4. UNIX for Dummies Questions & Answers
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
Discussion started by: pankajd
3 Replies
5. UNIX for Advanced & Expert Users
On Linux, top shows how much % of CPU is consumed by "user" as well as "sys" like below.
Tasks: 272 total, 3 running, 268 sleeping, 0 stopped, 1 zombie
Cpu(s): 65.9%us, 33.8%sy, 0.0%ni, 0.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 16300960k total, 16212488k used, 88472k free, ... (0 Replies)
Discussion started by: gomes1333
0 Replies
6. Shell Programming and Scripting
Hi,
Linux redhat 5.5
I need to write a kshell script that shows all the process that consume 100% CPU (or more. strange but there are time that top shows higger value that 100) and they are active more than 5 minute.
The top command shows all the relevat information:
The PID of the cpu ,... (0 Replies)
Discussion started by: yoavbe
0 Replies
7. Shell Programming and Scripting
I am looking for a way to log and graphically display cpu and RAM usage of linux processes over time. Since I couldn't find a simple tool to so (I tried zabbix and munin but installation failed) I started writing a shell script to do so
The script file parses the output of top command through... (2 Replies)
Discussion started by: andy_dufresne
2 Replies
8. Red Hat
Hi
please see attached picture of the TOP command.
the "java" process seem to consume 700% of cpu
is that mean that he uses 100% of every 7 cpu cores?
thanks (2 Replies)
Discussion started by: guy3145
2 Replies
9. UNIX for Beginners Questions & Answers
topfunc()
{
top
}
topfunc
Here i used the top command inside a function,and i called the function.
when executing this bash file i get all the process which are using by the kernel
i just want to display only the first 5 running process.
is it possible? (7 Replies)
Discussion started by: Meeran Rizvi
7 Replies
10. UNIX for Beginners Questions & Answers
I am middle of writing health check scripts, can you pls share commands on how I can get cpu and Mem of top consuming process info at the moment?
Also can u suggest ideas on what all I can look for as a part do health check on red hat Linux server?
I searched on site before posting, but... (2 Replies)
Discussion started by: Varja
2 Replies
LEARN ABOUT MOJAVE
jrunscript
jrunscript(1) General Commands Manual jrunscript(1)
NAME
jrunscript - command line script shell
SYNOPSIS
jrunscript [ options ] [ arguments... ]
PARAMETERS
options
Options, if used, should follow immediately after the command name.
arguments
Arguments, if used, should follow immediately after options or command name.
DESCRIPTION
jrunscript is a command line script shell. jrunscript supports both an interactive (read-eval-print) mode and a batch (-f option) mode of
script execution. This is a scripting language independent shell. By default, JavaScript is the language used, but the -l option can be
used to specify a different language. Through Java to scripting language communication, jrunscript supports "exploratory programming"
style.
NOTE: This tool is experimental and may not be available in future versions of the JDK.
OPTIONS
-classpath path
Specify where to find the user's .class files that are accessed by the script.
-cp path
This is a synonym for -classpath path
-Dname=value
Set a Java system property.
-Jflag
Pass flag directly to the Java virtual machine on which jrunscript is run.
-l language
Use the specified scripting language. By default, JavaScript is used. Note that to use other scripting languages, you also need to spec-
ify the corresponding script engine's jar file using -cp or -classpath option.
-e script
Evaluate the given script. This option can be used to run "one liner" scripts specified completely on the command line.
-encoding encoding
Specify the character encoding used while reading script files.
-f script-file
Evaluate the given script file (batch mode).
-f -
Read and evaluate a script from standard input (interactive mode).
-help
Output help message and exit.
-?
Output help message and exit.
-q
List all script engines available and exit.
ARGUMENTS
If [arguments...] are present and if no -e or -f option is used, then the first argument is the script file and the rest of the arguments,
if any, are passed as script arguments. If [arguments..] and -e or -f option are used, then all [arguments..] are passed as script argu-
ments. If [arguments..], -e and -f are missing, interactive mode is used. Script arguments are available to a script in an engine variable
named "arguments" of type String array.
EXAMPLES
Executing inline scripts
jrunscript -e "print('hello world')"
jrunscript -e "cat('http://java.sun.com')"
Use specified language and evaluate given script file
jrunscript -l js -f test.js
Interactive mode
jrunscript
js>print('hello world');
hello world
js>34 + 55
89
js> thread(function() { print('hello world'); }
hello world
js>
Run script file with script arguments
jrunscript test.js arg1 arg2 arg3
test.js is script file to execute and arg1, arg2 and arg3 are passed to script as script arguments. Script can access these using "argu-
ments" array.
SEE ALSO
If JavaScript is used, then before evaluating any user defined script, jrunscript initializes certain built-in functions and objects. These
JavaScript built-ins are documented in jsdocs.
06 Aug 2006 jrunscript(1)