shbang_misparse

来自「source of perl for linux application,」· 代码 · 共 13 行

#!/usr/bin/perl-latest

# The above #! line was misparsed as having a -t.
# Pre-5.8 this will simply cause perl to choke, since there was no -t.
# Post-5.8 taint warnings will mistakenly be on.

print "1..2\n";
print "ok 1\n";
my $warning = '';
$SIG{__WARN__} = sub { $warning .= $_[0] };
eval("#" . substr($0, 0, 0));
print $warning ? "not ok 2\n" : "ok 2\n";