TIMTOWTDI again! You can use the default behaviour that separates array or list elements with a space in double-quoted strings. This construct, @{ [ ... ] }, allows you to interpolate bits of code inside double-quoted strings.

$ perl -e '
@ids = qw{ 123 456 789 };
@names = qw{ ann joe flo };
print qq{@{ [ map qq{$ids[ $_ ] $names[ $_ ]}, 0 .. $#ids ] }\n};'
123 ann 456 joe 789 flo
$
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I hope this is of interest.

Cheers,

JohnGG