topic Re: while read line only reads the first line when passing to a script in Operating System - HP-UX

while read line only reads the first line when passing to a script

Heretic — Thu, 27 Oct 2011 13:59:41 GMT

First off - this is weird - going to take sometime getting used to these forums...I'm having ITRC withdrawal.

Okay, so I have a file...currrently has 9 lines (could have more could have less).

Each line has 7 variables that I want to pass to a script.

So, in come while read line:

while read line
do
./exe.backup.ksh $line
done <list

That only processes the first line :(

Echo works:

while read line
do
echo $line
echo " "
done <list


z_vbwaqa22 QB4 qb4adm /usr/sap/QB4/D06/exe /usr/sap/QB4/D06/exe.new /sapmnt/QB4/exe /sapmnt/QB4/exe.new

z_vbwjqa22 QB7 qb7adm /usr/sap/QB7/J09/exe /usr/sap/QB7/J09/exe.new /sapmnt/QB7/exe /sapmnt/QB7/exe.new

z_vcuaqa21 QU3 qu3adm /usr/sap/QU3/DVEBMGS36/exe /usr/sap/QU3/DVEBMGS36/exe.new /sapmnt/QU3/exe /sapmnt/QU3/exe.new

z_vecaqa22 QR3 qr3adm /usr/sap/QR3/D01/exe /usr/sap/QR3/D01/exe.new /sapmnt/QR3/exe /sapmnt/QR3/exe.new

z_vecjqa22 QR7 qr7adm /usr/sap/QR7/J04/exe /usr/sap/QR7/J04/exe.new /sapmnt/QR7/exe /sapmnt/QR7/exe.new

z_vepjqa21 QP6 qp6adm /usr/sap/QP6/JC63/exe /usr/sap/QP6/JC63/exe.new /sapmnt/QP6/exe /sapmnt/QP6/exe.new

z_vgrjqa22 QG6 qg6adm /usr/sap/QG6/J84/exe /usr/sap/QG6/J84/exe.new /sapmnt/QG6/exe /sapmnt/QG6/exe.new

z_vpiaqa22 QX3 qx3adm /usr/sap/QX3/D31/exe /usr/sap/QX3/D31/exe.new /sapmnt/QX3/exe /sapmnt/QX3/exe.new

z_vsraqa22 QY3 qy3adm /usr/sap/QY3/D11/exe /usr/sap/QY3/D11/exe.new /sapmnt/QY3/exe /sapmnt/QY3/exe.new

Here's the script:

#!/bin/ksh
# backup the exe dirs
# gwild 10262011
#
#
# Do you want to pass a file to this script?
# Put the 3 variables on a single line in a file named for example "list":
# z_vbwaqa21 qb4adm QB4 /usr/sap/QB4/DVEBMGS06/exe      /sapmnt/QB4/exe /usr/sap/QB4/DVEBMGS06/exe.new  /sapmnt/QB4/exe.new
#
# Then run the script like so:
#
#    while read line
#    do
#    ./exe.backup.ksh $line
#    done <list
#
# variables
LOG=/tmp/exe.backup.log
# check for parameters else give usage
if [ $# -lt 1 -o \( $# -gt 7 -a $# -lt 7 \) ]
then
  echo "Usage:"
  echo "exe.backup.ksh \"zone\" \"SID\" \"sidadm\" \"SRC1\" \"TRG1\" \"SRC2\" \"TRG2\""
  echo "Example:"
  echo "exe.backup.ksh z_vbwaqa21 QB4 qb4adm /usr/sap/QB4/DVEBMGS06/exe /usr/sap/QB4/DVEBMGS06/exe.new /sapmnt/QB4/exe  /sapmnt/QB4/exe.new"
  echo " "
  echo "Note: results in $LOG"
  exit 1
fi
echo " "

ZON=$1
SID=$2
ADM=$3
SRC1=$4
TRG1=$5
SRC2=$6
TRG2=$7

date >> $LOG
zlogin $ZON "su - $ADM -c 'echo "$SID" ; uname -n ; mkdir $TRG1 ; cd $SRC1 ; tar cf - * | ( cd $TRG1; tar xfp -) ; echo "how many files in $SRC1 ?" ; find $SRC1 |wc -l ; echo "How many files in $TRG1 ?" ; find $TRG1 |wc -l'" >>$LOG
date >> $LOG
zlogin $ZON "su - $ADM -c 'echo "$SID" ; uname -n ; mkdir $TRG2 ; cd $SRC2 ; tar cf - * | ( cd $TRG2; tar xfp -) ; echo "how many files in $SRC2 ?" ; find $SRC2 |wc -l ; echo "How many files in $TRG2 ?" ; find $TRG2 |wc -l'" >>$LOG
date >> $LOG

So, what am I doing wrong?

Re: while read line only reads the first line when passing to a script

Heretic — Thu, 27 Oct 2011 15:43:20 GMT

Seems the issue is with zlogin itself....sigh....

Re: while read line only reads the first line when passing to a script

James R. Ferguson — Thu, 27 Oct 2011 15:51:20 GMT

hi:

Why this line?

if [ $# -lt 1 -o \( $# -gt 7 -a $# -lt 7 \) ]

If you want to verify that you have seven arguments, do:

if [ $# -ne 7 ]

But then your comments note: "# Do you want to pass a file to this script? # Put the 3 variables on a single line in a file named for example "list":"

Regards!

...JRF...

Re: while read line only reads the first line when passing to a script

Heretic — Thu, 27 Oct 2011 18:36:57 GMT

work around:

#!/bin/ksh
# backup the exe dirs
# gwild 10262011
#
#
# Do you want to pass a file to this script?
######################################################################################################################
# TOO BAD - zlogin always breaks out of a while loop so you will have to run this script manually for every zone.
######################################################################################################################
# UPDATE - found a workaround by just creating a tmp file with the zlogin command - yet you can NOT just cut and paste
# it into your session - you have to sh it: sh /tmp/exe.backup.tmp
######################################################################################################################
# Put the 7 variables on a single line in a file named for example "list":
# z_vbwaqa21 qb4adm QB4 /usr/sap/QB4/DVEBMGS06/exe      /sapmnt/QB4/exe /usr/sap/QB4/DVEBMGS06/exe.new  /sapmnt/QB4/exe.new
#
# Then run the script like so:
#
#    while read line
#    do
#    ./exe.backup.ksh ${line}
#    done <list
#
# variables

LOG=/tmp/exe.backup.log
SHFILE=/tmp/exe.backup.tmp

# check for parameters else give usage
if [ $# -ne 7 ]
then
  echo "Usage:"
  echo "exe.backup.ksh \"zone\" \"SID\" \"sidadm\" \"SRC1\" \"TRG1\" \"SRC2\" \"TRG2\""
  echo "Example:"
  echo "exe.backup.ksh z_vbwaqa21 QB4 qb4adm /usr/sap/QB4/DVEBMGS06/exe /usr/sap/QB4/DVEBMGS06/exe.new /sapmnt/QB4/exe  /sap
mnt/QB4/exe.new"
  echo " "
  echo "Note: results in $LOG"
  exit 1
fi

ZON=$1
SID=$2
ADM=$3
SRC1=$4
TRG1=$5
SRC2=$6
TRG2=$7

date >> $LOG
echo "zlogin $ZON \"su - $ADM -c 'echo $SID ; uname -n ; mkdir $TRG1 ; cd $SRC1 ; tar cf - * | ( cd $TRG1; tar xfp -) ; echo
 "how many files in $SRC1 ?" ; find $SRC1 |wc -l ; echo "How many files in $TRG1 ?" ; find $TRG1 |wc -l'\"" >>$SHFILE
echo "zlogin $ZON \"su - $ADM -c 'echo $SID ; uname -n ; mkdir $TRG2 ; cd $SRC2 ; tar cf - * | ( cd $TRG2; tar xfp -) ; echo
 "how many files in $SRC2 ?" ; find $SRC2 |wc -l ; echo "How many files in $TRG2 ?" ; find $TRG2 |wc -l'\"" >>$SHFILE

Re: while read line only reads the first line when passing to a script

James R. Ferguson — Thu, 27 Oct 2011 19:08:40 GMT

Hi (again):

> # TOO BAD - zlogin always breaks out of a while loop so you will have to run this script manually for every zone.

This isn't HP-UX. Rather is appears to be Sun-OS. I'd suggest a non-HP community or at least an agnostic UNIX/Linux one in the future :-)

...JRF...

Re: while read line only reads the first line when passing to a script

Heretic — Thu, 27 Oct 2011 19:31:29 GMT

Unfortunately, Solaris admins tend to keep to themselves - in other words, I would never get any help from one of them. ;)

Re: while read line only reads the first line when passing to a script

Dennis Handly — Fri, 28 Oct 2011 03:07:27 GMT

>Each line has 7 variables that I want to pass to a script.

If you have 7 variables, you should really read 7 values: (Use more descriptive names)

while read v1 v2 v3 v4 v5 v6 v7; do

./exe.backup.ksh $v1 $v2 $v3 $v4 $v5 $v6 $v7

>echo works:

Not really. You don't know if there are one parm or 7.