# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/\$[^\$]*\$/ /g;t' <<< "$hello$
$
hello
$
.projection $I_{d,i} \rightarrow M_{d,i} M_{d,0}$, where all the
\begin{itemize}
\item $M$ is atomic and finitely generated;
\item $M$ is cancellative;
\item $(M, \le_L)$ and $(M, \le_R)$ are lattices;
\item there exists an element $\Delta \in M$, called {\it Garside element}, such that the set
$L(\Delta)= \{ x \in M; x\le_L \Delta\}$ generates $M$ and is equal to $R(\Delta)= \{ x\in M;
x\le_R \Delta\}$.
\end{itemize}
Using the fact that is atomic and that $L(\Delta)=
\{x \in M; x \le_L \Delta\} M \pi_L(a) \neq 1 a \neq
1 k \partial_L^k(a)=1 k$ be the
"
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for SED, please visit: https://www.gnu.org/software/sed/manual/html_node/The-_0022s_0022-Command.html