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Full Discussion: Looping not completing in shell script
Top Forums Shell Programming and Scripting Looping not completing in shell script Post 302769065 by surender reddy on Monday 11th of February 2013 06:23:56 AM
Old 02-11-2013
Looping not completing in shell script
Hi,

Iam using below code to login to servers to get cpu utilisation. but output is coming for only one server. code is below
HTML Code:
root@blr-svr-oclan-01 # more SSSC_CPU_UTIL1.sh
#!/bin/sh
echo "CPU UTILIZATION"
while read line; do
IDLE=`/usr/local/bin/sshpass -p 'xxx' ssh xxx@$line 'sar 2 2' | grep Average | cut -c38-40`
USAGE=`expr 100 - $IDLE`
echo $USAGE
done< sssc_ips.txt
inputfile

HTML Code:
root@blr-svr-oclan-01 # more sssc_ips.txt
172.30.3.42
172.30.3.64
172.30.19.42
172.30.19.38
HTML Code:
root@blr-svr-oclan-01 # sh  SSSC_CPU_UTIL1.sh sssc_ips.txt
output is coming as below
HTML Code:
CPU UTILIZATION
61
sample output of command sar 2 2 is given below

root@blr-svr-netap-01 # sar 2 2

HTML Code:
SunOS blr-svr-netap-01 5.10 Generic_137111-08 sun4u    02/11/2013

16:52:16    %usr    %sys    %wio   %idle
16:52:18      52       5       0      43
16:52:20      53       5       0      42

Average       53       5       0      42
please help to get the output for all servers and ip address of servers in output
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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