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#!/usr/bin/perl

...
my $git = system('git fetch --tags');

print "What's here? --- $git\n";

my $git = system('git fetch --tags &> /dev/null');

git fetch --tags &> /tmp/git.txt

#!/usr/bin/perl

...
        print "v$newest is greater than the running version v$running_
+version\n";
    }
}