Variable of variable

[Sylvain CROUET]

Hi!

I want to use a for loop within a shell script to display the value of several variables, but I can't manage it. It shoul be something like that:

for VAR in VAR1 VAR2 VAR3 ; do
echo
done

[Sanjay Kumar Suri]

Is this what you need?

a=5
b=5
for var in a b
do
echo $var
done

sks

[Denver Osborn]

Are the variables numeric and are you trying to get thier total? or create a loop that takes VAR and add it's value to VAR1 then VAR2 then VAR3??

Post additional info pls. Can you give us an example of what VAR, VAR1, VAR2 and VAR3 could be and your anticipated result.

-denver

[Sylvain CROUET]

No. I do not need the script to display the names of the variables (a and b), but their values (5 and 5).

[KapilRaj]

As I read ,

you have the following setup in place

export KAPS=KAPILRAJ
export KK=KAPS

using KK , you want to get KAPILRAJ i.e. something like echo ${$KK} .. ?

you may try the following

echo $KK|awk '{print "echo","$"$0}' |ksh

Please make sure that all the variables are exported i.e. export VAR1 VAR2

Regds,

Kaps

[Sylvain CROUET]

I just want to display the values of my variables, which are "strings".

[KapilRaj]

Can u explain in detail please .......

An echo $VAR will show the value only !!

Regds,

Kaps

[Sanjay Kumar Suri]

Check the following:

a=abc
b=def
for var in $a $b
do
echo $var
done


sks

[Denver Osborn]

VAR1=is
VAR2=this
VAR3=it

for VAR in $VAR1 $VAR2 $VAR3; do
echo $VAR
done


or??

VAR1=is
VAR2=this
VAR3=it

VAR="$VAR1 $VAR2 $VAR3"
echo $VAR

[Jeroen Peereboom]

What about the following:

A="this is 1"
B="This is 2"

for i in "$A" "$B"
do
echo $i
done

JP

[Jeroen Peereboom]

Many replies at the same time.
Note that quotes are essential if your variable values contain multiple words.

JP

[Sylvain CROUET]

The solution using $VAR1, $VAR2... directly within the "in" statement is quite interesting, but what if I want to print:
=

[curt larson_1 · Accepted solution]

for var in var1 var2
do
eval print "$var = \$$var"
done

[Sylvain CROUET]

Thanks Curt! That was the solution I was looking for.