$ perl -c pm_11105228.pl
Unrecognized escape \v passed through at pm_11105228.pl line 47.
Unrecognized escape \v passed through at pm_11105228.pl line 72.
Scalar value @vol_temp[1] better written as $vol_temp[1] at pm_11105228.pl line 38.
Scalar value @vol_temp[0] better written as $vol_temp[0] at pm_11105228.pl line 39.
Scalar value @vol_temp[0] better written as $vol_temp[0] at pm_11105228.pl line 41.
Scalar value @vol_temp[0] better written as $vol_temp[0] at pm_11105228.pl line 42.
pm_11105228.pl syntax OK