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while loop error. (command not found)

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# 1  
Old 04-19-2012
while loop error. (command not found)
can any1 please tell me what is problem with following code:
Code:
i=1;
cat test| while read CMD;
do
Var$i=$CMD;                  or     Var$i=$(echo $CMD) ;
let i++ 
done

I keep getting error :

Code:
line 4: Var1=sometext: command not found

# 2  
Old 04-19-2012
that's a useless use of cat. and for your problem use following
Code:
i=1;
while read CMD
do
eval Var$i=$CMD
let i++ 
done < test

# 3  
Old 04-19-2012
That's a useless use of eval, and eval is dangerous -- someone could feed text like `rm -Rf ~/` into the program, and it would do it.

Just do this instead:

Code:
i=1
while read var$i
do
        let i++
done <inputfile

Last edited by Corona688; 04-19-2012 at 10:42 PM.. Reason: added input file
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