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\begin{document}
\begin{table}[]
\centering
\caption{My caption}
\label{my-label}
\begin{tabular}{|lc|lc|}
\hline
\textbf{Command}       & \multicolumn{1}{l|}{\textbf{Output}} & \textbf{Command}       & \multicolumn{1}{l|}{\textbf{Output}} \\ \hline
\textbackslash{}k\{a\} & \textbf{a}                           & \textbackslash{}k\{A\} & \textbf{A}                           \\
\textbackslash{}'c     & \textbf{c}                           & \textbackslash{}'C     & \textbf{C}                           \\
\textbackslash{}k\{e\} & \textbf{e}                           & \textbackslash{}k\{E\} & \textbf{E}                           \\
\textbackslash{}l\{\}  & \textbf{l}                           & \textbackslash{}L\{\}  & \textbf{L}                           \\
\textbackslash{}'o     & \textbf{o}                           & \textbackslash{}'O\}   & \textbf{O}                           \\
\textbackslash{}'n     & \textbf{n}                           & \textbackslash{}'N\}   & \textbf{N}                           \\
\textbackslash{}'s     & \textbf{s}                           & \textbackslash{}'S     & \textbf{s}                           \\
\textbackslash{}'z     & \textbf{z}                           & \textbackslash{}'Z     & \textbf{Z}                           \\
\textbackslash{}.z     & \textbf{z}                           & \textbackslash{}.Z     & \textbf{Z}                           \\ \hline
\end{tabular}
\end{table}

\end{document}