How import $COLUMNS from set into script

Tártaro · #1 (**permalink**) 06-02-2009

im trying to do this inside a bash script;

for ((a=$COLUMNS;a>0;a--))
do
printf "="
done
printf "\n"

With it i want to display an "equals" line as long as de curent shell window.
but i can't get the $COLUMNS variable from the set enviroment.

Some help please.

parmar.kunal · #2 (**permalink**) 06-02-2009

try this:

xyz=`echo $COLUMNS`
for ((a=$xyz;a>0;a--))
do
printf "="
printf "\n"
done

Tártaro · #3 (**permalink**) 06-02-2009

Thanks but this dosen't work.The problem is i can't get $COLUMNS from the enviroment.

-----Post Update-----

i found myself the solution;

for ((a=$(tput cols);a>0;a--))
do
printf "="
done
printf "\n"

bye

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