如何用一个tex文件生成两个文档？

Question

我给出了（已经排版）两个非常相似的项目：一个包含练习和解决方案的目录和一个包含仅有的练习的简答。由于使用了软件包，comment两个项目只有四行代码不同（参见 MWE）\includecomment{exercise}vs. \excludecomment{exercise}、\includecomment{answer}vs.\excludecomment{answer}和\includecomment{shortQuestions}vs. \excludecomment{shortQuestions}。两个项目都有自己的主文件：仅solutions.tex用于完整目录和shortSolutions.tex简答。两个项目共享一个exercises包含练习文件的目录，例如introduction.tex、... 、measurementTechnology.tex，参见 MWE。例如，每个练习文件都introduction.tex包含环境exercise练习本身、环境简答shortAnswer、环境完整解决方案answer和环境当前主题的简答问题shortQuestions，参见 MWE。

我的任务是创造总是两个文档只有一个tex文件。因此，只需编译一个tex文件，比如说solutions.tex可以获取两个文档。我找到了一些信息这里，但我做错了，因为我只收到一个包含完整目录的文件。

参见我的 MWE: (注意力！似乎环境filecontents和包之间存在冲突，因此只有当和comment前面没有空格或制表符时，下面的代码才会编译。甚至 和之后的LaTeX 注释也是不允许的，见下文。)\begin{comment environment}\end{comment environment}%\begin{comment environment}\end{comment environment}

\documentclass[a4paper,
               10pt,
               fleqn,
               twoside,
               onecolumn,
               openright,
               english
              ]{memoir}

\begin{filecontents*}{preamble.tex}
  \usepackage[T1]{fontenc}
  \usepackage[babel = true]{microtype}
  \usepackage[
              locale = DE,
              per-mode = fraction,
              product-symbol = \cdot,
              product-units = single
             ]{siunitx}
  \usepackage{
              amsmath,
              amssymb,
              babel,
              booktabs,
              cancel,
              chemplants,
              comment,
              enumitem,
              graphicx,
              lscape,
              lmodern,
              mathtools,
              nicefrac,
              polynom,
              stanli,
              xurl
             }
  \usepackage[text]{esdiff}
  \usepackage[
              nooldvoltagedirection,
              european,
              cuteinductors
             ]{circuitikz}
  \usepackage[
              pdfstartview = FitB,
              bookmarksnumbered,
              colorlinks
             ]{hyperref}
  \title{Title for solutions}
  \author{Author Name}
\end{filecontents*}
\input{preamble}

\includecomment{exercise}
\includecomment{shortAnswer}
\includecomment{answer}
\includecomment{shortQuestions}

\begin{filecontents*}{exercises/introduction.tex}
  \begin{exercise}
    Text of the current exercise.
  \end{exercise}

  \begin{shortAnswer}
    Text of the idea for the solution or the final result.
  \end{shortAnswer}

  \begin{answer}
    Text of the step to step solution of the current exercise.
  \end{answer}

  \begin{shortQuestions}
    \begin{enumerate}
      \item Fist short question to the current subject.
      \item Second short question to the current subject.
      \item\ldots
    \end{enumerate}
  \end{shortQuestions}
\end{filecontents*}

\begin{filecontents*}{exercises/measurementTechnology.tex}
  \begin{exercise}
    Text of the current exercise.
  \end{exercise}

  \begin{shortAnswer}
    Text of the idea for the solution or the final result.
  \end{shortAnswer}

  \begin{answer}
    Text of the step to step solution of the current exercise.
  \end{answer}

  \begin{shortQuestions}
    \begin{enumerate}
      \item Fist short question to the current subject.
      \item Second short question to the current subject.
      \item\ldots
    \end{enumerate}
  \end{shortQuestions}
\end{filecontents*}

\begin{filecontents*}{content.tex}
  \frontmatter
  \maketitle
  \thispagestyle{empty}
  \cleardoublepage
  \mainmatter
  \part{Part 1}
    \chapter{Title 1}
      \input{exercises/introduction}
  \cleardoublepage
  \part{Part 2}
    \chapter{Title 1}
      \input{exercises/measurementTechnology}
\end{filecontents*}

\begin{filecontents*}{shortSolutions.tex}
  \documentclass[
                 a4paper,
                 10pt,
                 fleqn,
                 twoside,
                 onecolumn,
                 openright,
                 english,
                 ngerman
                ]{memoir}
  \input{preamble}
  \title{Title for short solutions}
  \excludecomment{exercise}
  \includecomment{shortAnswer}
  \excludecomment{answer}
  \excludecomment{shortQuestions}
  \begin{document}
    \input{content}
  \end{document}
\end{filecontents*}

\begin{document}
  \input{content}
  \immediate\write18{latex --shell-escape shortSolutions.tex}
\end{document}

我使用MikTeXwithTeXnicCenter进行编译LaTeX -> DviPs -> ps2pdf（我必须使用它）并遵循以下配置文件设置：

LaTeX：

文件路径：D:\TeXnicCenter\MiKTeX\texmfs\install\miktex\bin\x64\latex.exe

参数：--enable-write18 -interaction=nonstopmode "%wm"

DviPs(PDF):

文件路径：D:\TeXnicCenter\MiKTeX\texmfs\install\miktex\bin\x64\dvips.exe

参数：-P pdf -R0 "%bm.dvi"

和Ghostscript（ps2pdf）：

文件路径：D:\TeXnicCenter\MiKTeX\texmfs\install\miktex\bin\x64\mgs.exe

参数：-sPAPERSIZE=a4 -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile="%bm.pdf" -c save pop -f "%bm.ps"

对于代码行 \immediate\write18{latex --shell-escape shortSolutions.tex}日志文件说runsystem(latex --shell-escape shortSolutions.tex)...executed.。

我究竟做错了什么？

提前感谢您的帮助和努力！