shithub: kwa

ref: 34c2bbec85008430bd4858c2b12ce0dbbc47acb0
dir: /test/t.set0/

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{$0 = $1; print; print NF, $0; print $2}
{$(0) = $1; print; print NF, $0; print $2}
{ i = 1; $(i) = $i+1; print }