initial commit
This commit is contained in:
Fabio Scotto di Santolo
121
chapter19/iostat_loadmon.bash
Executable file
121
chapter19/iostat_loadmon.bash
Executable file
@@ -0,0 +1,121 @@
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#!/bin/bash
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#
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# SCRIPT: iostat_loadmon.bash
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# AUTHOR: Randy Michael
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# DATE: 12/20/2007
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# REV: 1.0.P
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# PLATFORM: AIX, HP-UX, Linux, OpenBSD, and Solaris
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#
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# PURPOSE: This shell script take two samples of the CPU
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# usage using the command. The first set of
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# data is an average since the last system reboot. The
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# second set of data is an average over the sampling
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# period, or $INTERVAL. The result of the data acquired
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# during the sampling period is shown to the user based
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# on the UNIX operating system that this shell script is
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# executing on. Different UNIX flavors have differing
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# outputs and the fields vary too.
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#
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||||
# REV LIST:
|
||||
#
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||||
#
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# set -n # Uncomment to check the script syntax without any execution
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# set -x # Uncomment to debug this shell script
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#
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###################################################
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############# DEFINE VARIABLES HERE ###############
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###################################################
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SECS=300 # Defines the number of seconds for each sample
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INTERVAL=2 # Defines the total number of sampling intervals
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STATCOUNT=0 # Initializes a loop counter to 0, zero
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OS=$(uname) # Defines the UNIX flavor
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###################################################
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##### SET UP THE ENVIRONMENT FOR EACH OS HERE ######
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###################################################
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# These "F-numbers" point to the correct field in the
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# command output for each UNIX flavor.
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case $OS in
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AIX|HP-UX) SWITCH='-t'
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F1=3
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F2=4
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F3=5
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F4=6
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echo -e "\nThe Operating System is $OS\n"
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;;
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Linux) SWITCH='-c'
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F1=1
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F2=3
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F3=4
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F4=6
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echo -e "\nThe Operating System is $OS\n"
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;;
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SunOS) SWITCH='-c'
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F1=1
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F2=2
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F3=3
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F4=4
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echo -e "\nThe Operating System is $OS\n"
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;;
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OpenBSD) SWITCH='-C'
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F1=1
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F2=2
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F3=3
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F4=5
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echo -e "\nThe Operating System is $OS\n"
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;;
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*) echo -e "\nERROR: $OS is not a supported operating system\n"
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echo -e "\n\t...EXITING...\n"
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exit 1
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;;
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esac
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###################################################
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######## BEGIN GATHERING STATISTICS HERE ##########
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###################################################
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echo -e "Gathering CPU Statistics using vmstat...\n"
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echo "There are $INTERVAL sampling periods with"
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echo "each interval lasting $SECS seconds"
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echo -e "\n...Please wait while gathering statistics...\n"
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# Use "iostat" to monitor the CPU utilization and
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# remove all lines that contain alphabetic characters
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# and blank spaces. Then use the previously defined
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# field numbers, for example, F1=4,to point directly
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# to the 4th position, for this example. The syntax
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# for this techniques is ==> $.$F1..
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iostat $SWITCH $SECS $INTERVAL | egrep -v '[a-zA-Z]|^$' \
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| awk '{print $'$F1', $'$F2', $'$F3', $'$F4'}' \
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| while read FIRST SECOND THIRD FOURTH
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do
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if ((STATCOUNT == 1)) # Loop counter to get the second set
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then # of data produced by "iostat"
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case $OS in # Show the results based on the UNIX flavor
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AIX)
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echo -e "\nUser part is ${FIRST}%"
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echo "System part is ${SECOND}%"
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echo "Idle part is ${THIRD}%"
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echo -e "I/O wait state is ${FOURTH}%\n"
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;;
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HP-UX|OpenBSD)
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echo -e "\nUser part is ${FIRST}%"
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echo "Nice part is ${SECOND}%"
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echo "System part is ${THIRD}%"
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echo -e "Idle time is ${FOURTH}%\n"
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;;
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SunOS|Linux)
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echo -e "\nUser part is ${FIRST}%"
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echo "System part is ${SECOND}%"
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echo "I/O Wait is ${THIRD}%"
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echo -e "Idle time is ${FOURTH}%\n"
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;;
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esac
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fi
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((STATCOUNT = STATCOUNT + 1)) # Increment the loop counter
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done
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109
chapter19/iostat_loadmon.ksh
Executable file
109
chapter19/iostat_loadmon.ksh
Executable file
@@ -0,0 +1,109 @@
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#!/bin/ksh
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#
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# SCRIPT: iostat_loadmon.ksh
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# AUTHOR: Randy Michael
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# DATE: 07/26/2007
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# REV: 1.0.P
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# PLATFORM: AIX, HP-UX, Linux, and Solaris
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||||
#
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||||
# PURPOSE: This shell script take two samples of the CPU
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# usage using the "iostat" command. The first set of
|
||||
# data is an average since the last system reboot. The
|
||||
# second set of data is an average over the sampling
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# period, or $INTERVAL. The result of the data aquired
|
||||
# during the sampling perion is shown to the user based
|
||||
# on the UNIX operating system that this shell script is
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# executing on. Different UNIX flavors have differing
|
||||
# outputs and the fields vary too.
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||||
#
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||||
# REV LIST:
|
||||
#
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||||
#
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||||
# set -n # Uncomment to check the script syntax without any execution
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||||
# set -x # Uncomment to debug this shell script
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||||
#
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||||
###################################################
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############# DEFINE VARIABLES HERE ###############
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###################################################
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SECONDS=300 # Defines the number of seconds for each sample
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INTERVAL=2 # Defines the total number of sampling intervals
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STATCOUNT=0 # Initialize a loop counter to 0, zero
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OS=$(uname) # Defines the UNIX flavor
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###################################################
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##### SETUP THE ENVIRONMENT FOR EACH OS HERE ######
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###################################################
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# These "F-numbers" point to the correct field in the
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# command output for each UNIX flavor.
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||||
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case $OS in
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AIX|HP-UX) SWITCH='-t'
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F1=3
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F2=4
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F3=5
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F4=6
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||||
echo "\nThe Operating System is $OS\n"
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;;
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Linux|SunOS) SWITCH='-c'
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F1=1
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F2=2
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F3=3
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F4=4
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echo "\nThe Operating System is $OS\n"
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;;
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||||
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*) echo "\nERROR: $OS is not a supported operating system\n"
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echo "\n\t...EXITING...\n"
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exit 1
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||||
;;
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||||
esac
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###################################################
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######## BEGIN GATHERING STATISTICS HERE ##########
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||||
###################################################
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||||
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||||
echo "Gathering CPU Statistics using vmstat...\n"
|
||||
echo "There are $INTERVAL sampling periods with"
|
||||
echo "each interval lasting $SECONDS seconds"
|
||||
echo "\n...Please wait while gathering statistics...\n"
|
||||
|
||||
# Use "iostat" to monitor the CPU utilization and
|
||||
# remove all lines that contain alphabetic characters
|
||||
# and blank spaces. Then use the previously defined
|
||||
# field numbers, for example F1=4,to point directly
|
||||
# to the 4th position, for this example. The syntax
|
||||
# for this techniques is ==> $'$F1'.
|
||||
|
||||
iostat $SWITCH $SECONDS $INTERVAL | egrep -v '[a-zA-Z]|^$' \
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||||
| awk '{print $'$F1', $'$F2', $'$F3', $'$F4'}' \
|
||||
| while read FIRST SECOND THIRD FORTH
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||||
do
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||||
if ((STATCOUNT == 1)) # Loop counter to get the second set
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||||
then # of data produces by "iostat"
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||||
|
||||
case $OS in # Show the results based on the UNIX flavor
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||||
AIX)
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||||
echo "\nUser part is ${FIRST}%"
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||||
echo "System part is ${SECOND}%"
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||||
echo "Idle part is ${THIRD}%"
|
||||
echo "I/O wait state is ${FORTH}%\n"
|
||||
;;
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||||
HP-UX|Linux)
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||||
echo "\nUser part is ${FIRST}%"
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echo "Nice part is ${SECOND}%"
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||||
echo "System part is ${THIRD}%"
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||||
echo "Idle time is ${FORTH}%\n"
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;;
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||||
SunOS)
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echo "\nUser part is ${FIRST}%"
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echo "System part is ${SECOND}%"
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echo "I/O Wait is ${THIRD}%"
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echo "Idle time is ${FORTH}%\n"
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;;
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esac
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fi
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((STATCOUNT = STATCOUNT + 1)) # Increment the loop counter
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done
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||||
92
chapter19/sar_loadmon.ksh
Executable file
92
chapter19/sar_loadmon.ksh
Executable file
@@ -0,0 +1,92 @@
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||||
#!/bin/ksh
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||||
#
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||||
# SCRIPT: sar_loadmon.ksh
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||||
# AUTHOR: Randy Michael
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||||
# DATE: 07/26/2007
|
||||
# REV: 1.0.P
|
||||
# PLATFORM: AIX, HP-UX, Linux, and Solaris
|
||||
#
|
||||
# PURPOSE: This shell script take multiple samples of the CPU
|
||||
# usage using the "sar" command. The average or
|
||||
# sample periods is shown to the user based on the
|
||||
# UNIX operating system that this shell script is
|
||||
# executing on. Different UNIX flavors have differing
|
||||
# outputs and the fields vary too.
|
||||
#
|
||||
# REV LIST:
|
||||
#
|
||||
#
|
||||
# set -n # Uncomment to check the script syntax without any execution
|
||||
# set -x # Uncomment to debug this shell script
|
||||
#
|
||||
###################################################
|
||||
############# DEFINE VARIABLES HERE ###############
|
||||
###################################################
|
||||
|
||||
SECONDS=30 # Defines the number of seconds for each sample
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||||
INTERVAL=10 # Defines the total number of sampling intervals
|
||||
OS=$(uname) # Defines the UNIX flavor
|
||||
|
||||
###################################################
|
||||
##### SETUP THE ENVIRONMENT FOR EACH OS HERE ######
|
||||
###################################################
|
||||
|
||||
# These "F-numbers" point to the correct field in the
|
||||
# command output for each UNIX flavor.
|
||||
|
||||
case $OS in
|
||||
AIX|HP-UX|SunOS)
|
||||
F1=2
|
||||
F2=3
|
||||
F3=4
|
||||
F4=5
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
Linux)
|
||||
F1=3
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||||
F2=4
|
||||
F3=5
|
||||
F4=6
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
*) echo "\nERROR: $OS is not a supported operating system\n"
|
||||
echo "\n\t...EXITING...\n"
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
###################################################
|
||||
######## BEGIN GATHERING STATISTICS HERE ##########
|
||||
###################################################
|
||||
|
||||
echo "Gathering CPU Statistics using sar...\n"
|
||||
echo "There are $INTERVAL sampling periods with"
|
||||
echo "each interval lasting $SECONDS seconds"
|
||||
echo "\n...Please wait while gathering statistics...\n"
|
||||
|
||||
# This "sar" command take $INTERVAL samples, each lasting
|
||||
# $SECONDS seconds. The average of this output is captured.
|
||||
|
||||
sar $SECONDS $INTERVAL | grep Average \
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||||
| awk '{print $'$F1', $'$F2', $'$F3', $'$F4'}' \
|
||||
| while read FIRST SECOND THIRD FORTH
|
||||
do
|
||||
# Based on the UNIX Flavor, tell the user the
|
||||
# result of the statistics gathered.
|
||||
|
||||
case $OS in
|
||||
AIX|HP-UX|SunOS)
|
||||
echo "\nUser part is ${FIRST}%"
|
||||
echo "System part is ${SECOND}%"
|
||||
echo "I/O wait state is ${FORTH}%"
|
||||
echo "Idle time is ${FORTH}%\n"
|
||||
;;
|
||||
Linux)
|
||||
echo "\nUser part is ${FIRST}%"
|
||||
echo "Nice part is ${SECOND}%"
|
||||
echo "System part is ${THIRD}%"
|
||||
echo "Idle time is ${FORTH}%\n"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
41
chapter19/uptime_fieldtest.ksh
Executable file
41
chapter19/uptime_fieldtest.ksh
Executable file
@@ -0,0 +1,41 @@
|
||||
#!/bin/ksh
|
||||
#
|
||||
# SCRIPT: uptime_fieldtest.ksh
|
||||
# AUTHOR: Randy Michael
|
||||
# DATE: 07/28/2002
|
||||
# PLATFORM: Any UNIX
|
||||
# PURPOSE: This shell script is used to demonstrate how the
|
||||
# average load statistics field shift depending on
|
||||
# how long it has been since the last system reboot.
|
||||
# The options are "min", "day", "hr" and combinations.
|
||||
# If all other tests fail then the system has been running
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||||
# for 1-23 hours.
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||||
|
||||
echo "\n" # Write one blank new line to the screen
|
||||
|
||||
# Show a current uptime output
|
||||
|
||||
uptime
|
||||
|
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# Find the correct field bases on how long the system has been up.
|
||||
|
||||
if $(uptime | grep day | grep min >/dev/null)
|
||||
then
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||||
FIELD=11
|
||||
elif $(uptime | grep day | grep hr >/dev/null)
|
||||
then
|
||||
FIELD=11
|
||||
elif $(uptime | grep day >/dev/null)
|
||||
then
|
||||
FIELD=10
|
||||
elif $(uptime | grep min >/dev/null)
|
||||
then
|
||||
FIELD=9
|
||||
else
|
||||
FIELD=8
|
||||
fi
|
||||
|
||||
# Display the correct field.
|
||||
|
||||
echo "\nField is $FIELD \n"
|
||||
|
||||
97
chapter19/uptime_loadmon.bash
Executable file
97
chapter19/uptime_loadmon.bash
Executable file
@@ -0,0 +1,97 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# SCRIPT: uptime_loadmon.bash
|
||||
# AUTHOR: Randy Michael
|
||||
# DATE: 12/16/2007
|
||||
# REV: 1.0.P
|
||||
# PLATFORM: AIX, HP-UX, Linux, OpenBSD, and Solaris
|
||||
#
|
||||
# PURPOSE: This shell script uses the "uptime" command to
|
||||
# extract the most current load average data, which
|
||||
# in this case is the average number of jobs in the
|
||||
# run queue.
|
||||
#
|
||||
# set -x # Uncomment to debug this shell script
|
||||
# set -n # Uncomment to check script syntax without any execution
|
||||
#
|
||||
###################################################
|
||||
############# DEFINE VARIABLES HERE ###############
|
||||
###################################################
|
||||
|
||||
MAXLOAD=2.00
|
||||
|
||||
# Extract the interger and decimal parts of $MAXLOAD
|
||||
MAXLOAD_INT=$(echo $MAXLOAD | awk -F '.' '{print $1}')
|
||||
MAXLOAD_DEC=$(echo $MAXLOAD | awk -F '.' '{print $2}')
|
||||
|
||||
# Check the UNIX flavor for the correct uptime values
|
||||
# AIX specifies load as the last 5, 10, and 15 minutes.
|
||||
# The other UNIX flavors specifies the load in the last
|
||||
# 1, 5, and 15 minutes.
|
||||
|
||||
case $(uname) in
|
||||
AIX) L1=5
|
||||
L2=10
|
||||
L3=15
|
||||
;;
|
||||
*)
|
||||
L1=1
|
||||
L2=5
|
||||
L3=15
|
||||
;;
|
||||
esac
|
||||
|
||||
|
||||
###################################################
|
||||
# DEFINE FUNCTIONS HERE
|
||||
###################################################
|
||||
|
||||
function get_max
|
||||
{
|
||||
# This function return the number of auguments
|
||||
# presented to the function
|
||||
#
|
||||
(($# == 0)) && return -1
|
||||
echo $#
|
||||
}
|
||||
|
||||
###################################################
|
||||
# BEGINNING OF MAIN
|
||||
###################################################
|
||||
|
||||
echo -e "\nGathering System Load Average using the \"uptime\" command\n"
|
||||
|
||||
# This next command statement extracts the latest
|
||||
# load statistics no matter what the UNIX flavor is.
|
||||
|
||||
NUM_ARGS=$(get_max $(uptime)) # Get the total number of fields in uptime output
|
||||
|
||||
((NUM_ARGS == -1)) && echo "ERROR: get_max Function Error...EXITING..."\
|
||||
&& exit 2
|
||||
|
||||
|
||||
# Extract the data for the last 5, 10, and 15 minutes
|
||||
|
||||
ARGM2=$(((NUM_ARGS - 2))) # Subtract 2 from the total
|
||||
ARGM1=$(((NUM_ARGS - 1))) # Subtract 1 from the total
|
||||
ARGM=$NUM_ARGS # Last value in string
|
||||
|
||||
uptime | sed s/,//g | awk '{print $'$ARGM2', $'$ARGM1', $'$ARGM'}' \
|
||||
| while read LAST5 LAST10 LAST15
|
||||
do
|
||||
echo $LAST5 | awk -F '.' '{print $1, $2}' \
|
||||
| while read INT DEC
|
||||
do
|
||||
if (( INT > MAXLOAD_INT ))
|
||||
then
|
||||
echo -e "\nWARNING: System load has \
|
||||
reached ${LAST5}\n"
|
||||
fi
|
||||
|
||||
echo "System load average for the last $L1 minutes is $LAST5"
|
||||
echo "System load average for the last $L2 minutes is $LAST10"
|
||||
echo "System load average for the last $L3 minutes is $LAST15"
|
||||
echo -e "\nThe load threshold is set to ${MAXLOAD}\n"
|
||||
done
|
||||
done
|
||||
|
||||
76
chapter19/uptime_loadmon.ksh
Executable file
76
chapter19/uptime_loadmon.ksh
Executable file
@@ -0,0 +1,76 @@
|
||||
#!/bin/ksh
|
||||
#
|
||||
# SCRIPT: uptime_loadmon.ksh
|
||||
# AUTHOR: Randy Michael
|
||||
# DATE: 07/26/2007
|
||||
# REV: 1.0.P
|
||||
# PLATFORM: AIX, HP-UX, Linux, and Solaris
|
||||
#
|
||||
# PURPOSE: This shell script uses the "uptime" command to
|
||||
# extract the most current load average data. There
|
||||
# is a special need in this script to determine
|
||||
# how long the system has been running since the
|
||||
# last reboot. The load average field "floats"
|
||||
# during the first 24 hours after a system restart.
|
||||
#
|
||||
# set -x # Uncomment to debug this shell script
|
||||
# set -n # Uncomment to check script syntax without any execution
|
||||
#
|
||||
###################################################
|
||||
############# DEFINE VARIABLES HERE ###############
|
||||
###################################################
|
||||
|
||||
SECONDS=30
|
||||
INTERVAL=2
|
||||
MAXLOAD=2.00
|
||||
typeset -i INT_MAXLOAD=$MAXLOAD
|
||||
|
||||
# Find the correct field to extract based on how long
|
||||
# the system has been up, or since the last reboot.
|
||||
|
||||
if $(uptime | grep day | grep min >/dev/null)
|
||||
then
|
||||
FIELD=11
|
||||
elif $(uptime | grep day | grep hrs >/dev/null)
|
||||
then
|
||||
FIELD=11
|
||||
elif $(uptime | grep day >/dev/null)
|
||||
then
|
||||
FIELD=10
|
||||
elif $(uptime | grep min >/dev/null)
|
||||
then
|
||||
FIELD=9
|
||||
else
|
||||
FIELD=8
|
||||
fi
|
||||
|
||||
###################################################
|
||||
######## BEGIN GATHERING STATISTICS HERE ##########
|
||||
###################################################
|
||||
|
||||
echo "\nGathering System Load Average using the \"uptime\" command\n"
|
||||
|
||||
# This next command statement extracts the latest
|
||||
# load statistics no matter what the UNIX flavor is.
|
||||
|
||||
LOAD=$(uptime | sed s/,//g | awk '{print $'$FIELD'}')
|
||||
|
||||
# We need an integer representation of the $LOAD
|
||||
# variable to do the test for the load going over
|
||||
# the set threshold defince by the $INT_MAXLOAD
|
||||
# variable
|
||||
|
||||
typeset -i INT_LOAD=$LOAD
|
||||
|
||||
# If the current load has exceeded the threshold then
|
||||
# issue a warning message. The next step always shows
|
||||
# the user what the current load and threshold values
|
||||
# are set to.
|
||||
|
||||
((INT_LOAD >= INT_MAXLOAD)) && echo "\nWARNING: System load has \
|
||||
reached ${LOAD}\n"
|
||||
|
||||
echo "\nSystem load value is currently at ${LOAD}"
|
||||
echo "The load threshold is set to ${MAXLOAD}\n"
|
||||
|
||||
|
||||
123
chapter19/vmstat_loadmon.bash
Executable file
123
chapter19/vmstat_loadmon.bash
Executable file
@@ -0,0 +1,123 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# SCRIPT: vmstat_loadmon.bash
|
||||
# AUTHOR: Randy Michael
|
||||
# DATE: 12/20/2007
|
||||
# REV: 1.0.P
|
||||
# PLATFORM: AIX, HP-UX, Linux, OpenBSD, and Solaris
|
||||
#
|
||||
# PURPOSE: This shell script takes two samples of the CPU
|
||||
# usage using the command. The first set of
|
||||
# data is an average since the last system reboot. The
|
||||
# second set of data is an average over the sampling
|
||||
# period, or $INTERVAL. The result of the data acquired
|
||||
# during the sampling period is shown to the user based
|
||||
# on the UNIX operating system that this shell script is
|
||||
# executing on. Different UNIX flavors have differing
|
||||
# outputs and the fields vary too.
|
||||
#
|
||||
# REV LIST:
|
||||
#
|
||||
#
|
||||
# set -n # Uncomment to check the script syntax without any execution
|
||||
# set -x # Uncomment to debug this shell script
|
||||
#
|
||||
###################################################
|
||||
############# DEFINE VARIABLES HERE ###############
|
||||
###################################################
|
||||
|
||||
SECS=300 # Defines the number of seconds for each sample
|
||||
INTERVAL=2 # Defines the total number of sampling intervals
|
||||
STATCOUNT=0 # Initializes a loop counter to 0, zero
|
||||
OS=$(uname) # Defines the UNIX flavor
|
||||
|
||||
###################################################
|
||||
##### SET UP THE ENVIRONMENT FOR EACH OS HERE ######
|
||||
###################################################
|
||||
|
||||
# These "F-numbers" point to the correct field in the
|
||||
# command output for each UNIX flavor.
|
||||
|
||||
OS=$(uname)
|
||||
|
||||
case $OS in
|
||||
AIX)
|
||||
F1=14
|
||||
F2=15
|
||||
F3=16
|
||||
F4=17
|
||||
echo -e "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
HP-UX)
|
||||
F1=16
|
||||
F2=17
|
||||
F3=18
|
||||
F4=1 # This "F4=1" is bogus and not used for HP-UX
|
||||
echo -e "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
Linux)
|
||||
F1=13
|
||||
F2=14
|
||||
F3=15
|
||||
F4=16
|
||||
echo -e "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
OpenBSD)
|
||||
F1=17
|
||||
F2=18
|
||||
F3=19
|
||||
F4=1 # This "F4=1" is bogus and not used for Linux
|
||||
echo -e "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
SunOS)
|
||||
F1=20
|
||||
F2=21
|
||||
F3=22
|
||||
F4=1 # This "F4=1" is bogus and not used for SunOS
|
||||
echo -e "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
*) echo -e "\nERROR: $OS is not a supported operating system\n"
|
||||
echo -e "\n\t...EXITING...\n"
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
###################################################
|
||||
######## BEGIN GATHERING STATISTICS HERE ##########
|
||||
###################################################
|
||||
|
||||
echo -e "Gathering CPU Statistics using vmstat...\n"
|
||||
echo "There are $INTERVAL sampling periods with"
|
||||
echo "each interval lasting $SECS seconds"
|
||||
echo -e "\n...Please wait while gathering statistics...\n"
|
||||
|
||||
# Use "vmstat" to montor the CPU utilization and
|
||||
# remove all lines that contain alphabetic characters
|
||||
# and blank spaces. Then use the previously defined
|
||||
# field numbers, for example F1=20,to point directly
|
||||
# to the 20th position, for this example. The syntax
|
||||
# for this technique is ==> $.$F1. and points directly
|
||||
# to the $20 positional parameter.
|
||||
|
||||
vmstat $SECS $INTERVAL | egrep -v '[a-zA-Z]|^$' \
|
||||
| awk '{print $'$F1', $'$F2', $'$F3', $'$F4'}' \
|
||||
| while read FIRST SECOND THIRD FOURTH
|
||||
do
|
||||
if ((STATCOUNT == 1)) # Loop counter to get the second set
|
||||
then # of data produced by
|
||||
|
||||
case $OS in # Show the results based on the UNIX flavor
|
||||
AIX|Linux)
|
||||
echo -e "\nUser part is ${FIRST}%"
|
||||
echo "System part is ${SECOND}%"
|
||||
echo "Idle part is ${THIRD}%"
|
||||
echo -e "I/O wait state is ${FOURTH}%\n"
|
||||
;;
|
||||
HP-UX|OpenBSD|SunOS)
|
||||
echo -e "\nUser part is ${FIRST}%"
|
||||
echo "System part is ${SECOND}%"
|
||||
echo -e "Idle time is ${THIRD}%\n"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
((STATCOUNT = STATCOUNT + 1)) # Increment the loop counter
|
||||
done
|
||||
120
chapter19/vmstat_loadmon.ksh
Executable file
120
chapter19/vmstat_loadmon.ksh
Executable file
@@ -0,0 +1,120 @@
|
||||
#!/bin/ksh
|
||||
#
|
||||
# SCRIPT: vmstat_loadmon.ksh
|
||||
# AUTHOR: Randy Michael
|
||||
# DATE: 07/26/2002
|
||||
# REV: 1.0.P
|
||||
# PLATFORM: AIX, HP-UX, Linux, and Solaris
|
||||
#
|
||||
# PURPOSE: This shell script take two samples of the CPU
|
||||
# usage using the "vmstat" command. The first set of
|
||||
# data is an average since the last system reboot. The
|
||||
# second set of data is an average over the sampling
|
||||
# period, or $INTERVAL. The result of the data aquired
|
||||
# during the sampling perion is shown to the user based
|
||||
# on the UNIX operating system that this shell script is
|
||||
# executing on. Different UNIX flavors have differing
|
||||
# outputs and the fields vary too.
|
||||
#
|
||||
# REV LIST:
|
||||
#
|
||||
#
|
||||
# set -n # Uncomment to check the script syntax without any execution
|
||||
# set -x # Uncomment to debug this shell script
|
||||
#
|
||||
###################################################
|
||||
############# DEFINE VARIABLES HERE ###############
|
||||
###################################################
|
||||
|
||||
SECONDS=300 # Defines the number of seconds for each sample
|
||||
INTERVAL=2 # Defines the total number of sampling intervals
|
||||
STATCOUNT=0 # Initialize a loop counter to 0, zero
|
||||
OS=$(uname) # Defines the UNIX flavor
|
||||
|
||||
###################################################
|
||||
##### SETUP THE ENVIRONMENT FOR EACH OS HERE ######
|
||||
###################################################
|
||||
|
||||
# These "F-numbers" point to the correct field in the
|
||||
# command output for each UNIX flavor.
|
||||
|
||||
case $OS in
|
||||
AIX) # AIX has four relative columns in the output
|
||||
F1=14
|
||||
F2=15
|
||||
F3=16
|
||||
F4=17
|
||||
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
HP-UX) # HP-UX only has three relative columns in the output
|
||||
F1=16
|
||||
F2=17
|
||||
F3=18
|
||||
F4=1 # This "F4=1" is bogus and not used for HP-UX
|
||||
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
Linux) # Linux only has three relative columns in the output
|
||||
F1=14
|
||||
F2=15
|
||||
F3=16
|
||||
F4=1 # This "F4=1" is bogus and not used for Linux
|
||||
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
SunOS) # SunOS only has three relative columns in the output
|
||||
F1=20
|
||||
F2=21
|
||||
F3=22
|
||||
F4=1 # This "F4=1" is bogus and not used for SunOS
|
||||
|
||||
echo "\nThe Operating System is $OS\n"
|
||||
;;
|
||||
*) echo "\nERROR: $OS is not a supported operating system\n"
|
||||
echo "\n\t...EXITING...\n"
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
###################################################
|
||||
######## BEGIN GATHERING STATISTICS HERE ##########
|
||||
###################################################
|
||||
|
||||
echo "Gathering CPU Statistics using vmstat...\n"
|
||||
echo "There are $INTERVAL sampling periods with"
|
||||
echo "each interval lasting $SECONDS seconds"
|
||||
echo "\n...Please wait while gathering statistics...\n"
|
||||
|
||||
# Use "vmstat" to monitor the CPU utilization and
|
||||
# remove all lines that contain alphabetic characters
|
||||
# and blank spaces. Then use the previously defined
|
||||
# field numbers, for example F1=20,to point directly
|
||||
# to the 20th position, for this example. The syntax
|
||||
# for this techniques is ==> $'$F1', and points directly
|
||||
# to the $20 positional parameter.
|
||||
|
||||
vmstat $SECONDS $INTERVAL | egrep -v '[a-zA-Z]|^$' \
|
||||
| awk '{print $'$F1', $'$F2', $'$F3', $'$F4'}' \
|
||||
| while read FIRST SECOND THIRD FORTH
|
||||
do
|
||||
if ((STATCOUNT == 1)) # Loop counter to get the second set
|
||||
then # of data produces by "vmstat"
|
||||
|
||||
case $OS in # Show the results based on the UNIX flavor
|
||||
AIX)
|
||||
echo "\nUser part is ${FIRST}%"
|
||||
echo "System part is ${SECOND}%"
|
||||
echo "Idle part is ${THIRD}%"
|
||||
echo "I/O wait state is ${FORTH}%\n"
|
||||
;;
|
||||
HP-UX|Linux|SunOS)
|
||||
echo "\nUser part is ${FIRST}%"
|
||||
echo "System part is ${SECOND}%"
|
||||
echo "Idle time is ${THIRD}%\n"
|
||||
;;
|
||||
esac
|
||||
|
||||
fi
|
||||
((STATCOUNT = STATCOUNT + 1)) # Increment the loop counter
|
||||
done
|
||||
Reference in New Issue
Block a user