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thank you !!!

thanks, but that doesn't work, it treats $ff and $c as two different variables, resulting in $ff being nothing (undefined) and $c being what it is, counter integer. that is why $[ff$c] syntax has to...

Hi
Here is a simple code

for (( c=1; c<=20; c++ ))
do
eval ff${c}=`cut -f$c -d, dupa`
echo $[ff${c}]

if [ $[ff${c}] != 0 ] ; then
echo chuju
...

Hi all,
I am rather new to shell programing
I am trying to run a loop through variables that already exist,
here is (a part of ) the code, variables param_kz etc already exist (in the same file,...