Re: BASH Scripting

> From: Aaron Konstam <[email protected]>
> To: [email protected]
> Subject: Re: BASH Scripting
> 
> On Tue, Mar 18, 2003 at 05:17:08PM -0000, David Nithakorne wrote:
> > I am trying to set the value of SIDS in the following script to
> > something other than "". It seems that once out of the do/done block the
> > value od $SIDS reverts back to ""....why is this and how can I get $SIDS
> > to keep its new value opnce out of the do/done block. 
> > 
> > # !/bin/sh
> > SIDS=""
> > grep -v '^#' /etc/oratab | while read LINE
> > do
> >       ISID=`echo $LINE | cut -f1 -d:`
> >       OHOME=`echo $LINE | cut -f2 -d:`
> >       OBOWNER=`ls -l $OHOME/bin/sqlplus | awk '{print $3}'`
> >       SIDS=`echo "$SIDS $OBOWNER:$ISID"`
> >       echo "SIDS is $SIDS"
> > done
> >       echo SIDS is  $SIDS
> >       echo "OBOWNER is  $OBOWNER"
> > 
> > the /etc/oratab file is: - 
> > 
> > LD4U:/opt/oracle/product/9.2.0:Y 
> > oem:/opt/oracle/product/9.2.0:Y 
> > ld4udev:/opt/oracle/product/9.2.0:Y 
> > 
> > Thanks
> > 
> > David
> > 
> Just export $SIDS after it is defined.
> -------------------------------------------
> Aaron Konstam

How can that work?  The export allows referencing the variable
in the children of the defining process, but the child can't change the
environment of the parent.

-- 
    pete peterson
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