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mkdir "$dir", 0777 || die "Could not mkdir \"$dir\": $!\n";
my $dir= "source"; # A directory that I know exists. warn "Using or...\n"; ... warn "Using ||...\n"; mkdir "$dir", 0777 || die "Could not mkdir \"$dir\": $!\n"; warn "Done.\n";
E:\etm\Work>perl -w mkdir.pl Using or... Could not mkdir "source": File exists Using ||... Done.
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