please do
# The following script is a demonstration of how to
# loop through some groups of a file to get some properties
# This uses selction by group positions (think it as
# each line of the control panel,but remember that
# position start at zero.
open pdb from download "1CRN.pdb";
$X = 5;
do
{
$SEL = select in "1crn" pos $X;
$PHI = phi($SEL);
print $PHI;
} while (++$X < 8);
thank you