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$ ./ttfwidth.pl -u Symbola605.ttf  

...
0x0026,15,1593,95,95,1498,-45,1466,796
...etc
...etc

#!/usr/bin/perl
use warnings;
...
#print "@out\n";
my @unihex =  grep{/^u[\d+]/} @out;
print "@unihex\n";