Re: Combining variables

From: JOSEPH KREMBLAS (JKREMBLAS@REDHEARTGIFTS.COM)
Date: Thu Mar 18 2004 - 10:55:46 EST


PARM1=hello
PARM2=world
PARM3=bye

for i in 1 2 3
do
        echo $(eval echo PARM${i})
done

-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Raj Atwal
Sent: Thursday, March 18, 2004 8:48 AM
To: aix-l@Princeton.EDU
Subject: Re: Combining variables

Sorry guys...perhaps I didn't explain it well enough. Let me try
again...

If I have three parameters in a script thus:

PARM1=hello
PARM2=world
PARM3=bye

and I now build a for loop to echo the values

for i in 1 2 3
do
echo PARM$i (this is where I am stuck)
done

When I run the script I would want to see

hello
world
bye

instead of

PARM1
PARM2
PARM3

Hope that is clearer. I am stuck figuring out how to expand the PARM#
into the variable's actually value.

TIA

JOSEPH KREMBLAS <JKREMBLAS@REDHEARTGIFTS.COM> wrote:
PARM10=hello
AZ=10

echo ${PARM10}${AZ}

Note: Notice the braces around the variable name.

-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Raj Atwal
Sent: Thursday, March 18, 2004 8:20 AM
To: aix-l@Princeton.EDU
Subject: Combining variables

PARM10=hello
AZ=10

If I have the above in a script and I want to echo the value of my
parameter PARM10, how would I do that by combining my AZ parameter. For
instance I want to be able to do

echo $PARM$AZ

and have it echo the value of PARM10 to say hello. I can't figure how to
quote it to expand $PARM10.

TIA
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