You could also use perl's $LIST_SEPARATOR $" (see perldoc perlvar).
perl -E 'my @x=0..5; local $"=qq|\t|; say "@x"'
0 1 2 3 4 5
Slightly more dramatic:
perl -E 'my @x=0..5; local $"=qq|= \t =|; say "=@x="'
=0= =1= =2= =3= =4= =5=
What is the sound of Perl? Is it not the sound of a wall that people have stopped banging their heads against?
-Larry Wall, 1992
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