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osirisgothra/isnumber.pl

Created September 25, 2024 16:28
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isnumber.pl
#!/usr/bin/perl
use warnings;
use v5.20.2;
use Scalar::Util qw(looks_like_a_number);
die("it doesnt look like its a number") unless looks_like_a_number($ARGV[1] // "NaN");
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