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Getting value of variable whose name is stored in another variable

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# 1  
Old 07-18-2013
Getting value of variable whose name is stored in another variable
Unix OS : Linux 2.6x
Shell type : Korn
I am stuck in weird problem .
In my shell script I am setting an environment variable using the following command :
Code:
EMP="KUMARJIT"; export EMP

In the following sections of the script , what I did is :
I created and initialized a new shell variable "type" using the following command:
Code:
type="EMP"

As because the VALUE OF A SHELL VARIABLE(type) IS THE NAME OF ONE THE ENVIRONMENT VARIABLE(EMP) ,
how can I get the value of variable "EMP" using the shell variable "type" ?

Thanks
Kumarjit.
# 2  
Old 07-18-2013
Linux Getting value of variable whose name is stored in another variable
try this....Smilie

Code:
type=${EMP}

# 3  
Old 07-18-2013
It's not exactly obvious what you want, but...
Code:
$ eval echo \$$type
KUMARJIT

PS: Linux 2.6 is not an operating system, Unix or otherwise!
# 4  
Old 07-18-2013
Were it bash, you could use its "variable indirection":
Code:
echo ${!type}
KUMARJIT

In ksh, you could use the ill reputed eval:
Code:
eval echo \$$type
KUMARJIT

# 5  
Old 07-18-2013
@Scot and Rudic : Thanks guys for your WONDER replies . It clicked great time .

regards
Kumarjit.
# 6  
Old 07-18-2013
The Korn shell that comes with your OS is ksh93. It should be able to do this:
Code:
EMP=KUMARJIT
nameref type=EMP
echo "$type"
KUMARJIT

This User Gave Thanks to Scrutinizer For This Post:
Scott
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