\documentclass[twocolumn]{article}
\usepackage[utf8]{inputenc}
\usepackage{tcolorbox}
\tcbuselibrary{listingsutf8,breakable,skins}
\tcbset{
breakable,
enlarge bottom finally by=-3ex,
listing options={style=tcblatex,basicstyle=\ttfamily\footnotesize},
skin=enhanced jigsaw,
}
\begin{document}
Vediamo un po'.
\begin{tcblisting}{listing only}
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef
abcdef