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Top Forums Shell Programming and Scripting Shell script to display top 5 process (per cpu consumption) Post 302319752 by mr_awd on Tuesday 26th of May 2009 06:13:37 AM
Old 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

Is it too difficult to implement in pure bash script?

Many thanks in advance for any help.
 

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uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME
uudemon.admin, uudemon.cleanu, uudemon.hour, uudemon.poll - Administrative shell scripts for polling remote systems, cleaning up spool directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons SYNOPSIS
These shell scripts reside in the following directory: /usr/lib/uucp DESCRIPTION
All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the scripts, remove the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file. This script reports status to the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID (uucpa) or root. This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com- mand is run with the following parameters: -C7, -D7, X2, -o2, -W1. This script runs the uusched and uuxqt daemons in the background. This script polls the systems listed in the /usr/lib/uucp/Poll file. The uudemon.poll script should be scheduled before the uudemon.hour script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script. FILES
Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files. Contains the uucp file. RELATED INFORMATION
Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1) Files: /usr/lib/uucp delim off uudemon(4)
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