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The loop does not run as expected

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# 8  
Old 07-05-2006
Hi vgersh99,

Thanks for educated explanation!
But I have bad news from my point of view.
I still have problems with my loop when I use "rsh" command.

My ksh content is :
Code:
#! /bin/ksh

CONF_FILE=nir.conf
export $(< $CONF_FILE)
installLog=/tmp/nir-$$.log
run_install_sr()
{
nawk -F'[=:]' '$1 ~ "^INSTALL_SR_" && $NF = "Y" {print $2}' "${CONF_FILE}" | while read INSTALL_SR_DIR
do
   rsh ${DB_HOST_NAME} "echo $INSTALL_SR_DIR"
done
}
run_install_sr

The configuration file content is:
Code:
DB_LAYER=NO
ADMIN_LAYER=NO
RTESUB_LAYER=NO
DB_HOST_NAME=tornado
ADMIN_HOST_NAME=tornado
RTESUB_HOST_NAME=tornado
RESPONSE_FILE_SR=/tmp/SR.rsp
INSTALL_SR_1=/home/Upgrade_4.7.1/Utilities/Install_SR:Y
INSTALL_SR_2=/home/Upgrade_4.7.2/Utilities/Install_SR:Y
INSTALL_SR_3=/home/Upgrade_4.8/Utilities/Install_SR:Y
INSTALL_SR_4=/home/Upgrade_4.8.1/Utilities/Install_SR:Y

I ran the script:
Code:
bounty: # ./nir.ksh -f nir.conf
/home/Upgrade_4.7.1/Utilities/Install_SR

Again,the loop ran only once on the first iteration!

I'm gonna lose my sanity ....

Any more ideas ?

Thanks a lot in advance,
Nir
# 9  
Old 07-06-2006
Hi folks,

I wanted to update you that finally I found the solution :
I replaced the "while" loop :
Code:
nawk -F'[=:]' '$1 ~ "^INSTALL_SR_" && $NF = "Y" {print $2}' | while read INSTALL_SR_DIR
do
  ..........
done

with "for" loop:

Code:
for INSTALL_SR_DIR in `nawk -F'[=:]' '$1 ~ "^INSTALL_SR_" && $NF = "Y" {print $2}' "${CONF_FILE}"`
do
  ........
done

It works now perfectly!

F.Y.I

Best regards,
Nir
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