Pasando variables en una matriz
resnuml=`cat h2.pdb | awk '{print $5}' | uniq` # get uniq pattern like
echo resnuml : 10 11 12 13 14 15
Aresnum=( $resnuml ) # assigning above values into array
echo length : ${#Aresnum[@]} # Array length. = 6
echo resnums : ${Aresnum[@]} # = 10 11 12 13 14 15
echo resnum 0: ${Aresnum[0]} # = 10
Hutch Polecat