$ ./pm_1217567_cmp_bench.pl > ./pm_1217567_cmp_bench_both.out
$ cp ./pm_1217567_cmp_bench_both.out ./pm_1217567_cmp_bench_orig.out
$ cp ./pm_1217567_cmp_bench_both.out ./pm_1217567_cmp_bench_kens.out
$ vi ./pm_1217567_cmp_bench_orig.out # /Ken<NL>dGZZ
$ vi ./pm_1217567_cmp_bench_kens.out # /Ken<NL>kmm1Gd'mZZ
$ diff ./pm_1217567_cmp_bench_orig.out ./pm_1217567_cmp_bench_kens.out
1c1
< *** Original ***
---
> *** Ken's ***
$