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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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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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