bash - 禁用 shell 解析的 here-document

Question

我需要一个用于将 TeX 上传到在线 shell 的文档。我不希望 shell 对内容做任何事情。以下 MWE 是我迄今为止管理过的最好的。

cat << EOF > /tmp/mytex 
\documentclass{article}
\begin{document}
Test mathematics:  $ 2^{10} = 1024$ works but
$e^{i\pi} = -1$ is mangled because no space follows the $e$.
"double" and 'single' quotes should be preserved too.
\end{document}
EOF

Answer 1

试试这个:

cat << 'EOF' > /tmp/mytex 
\documentclass{article}
\begin{document}
Test mathematics:  $ 2^{10} = 1024$ works but
$e^{i\pi} = -1$ is mangled because no space follows the $e$.
"double" and 'single' quotes should be preserved too.
\end{document}
EOF

From the bash reference manual :

The format of here-documents is:

<<[-]word
         here-document 
delimiter 

If any characters in word are quoted, the delimiter is the result of quote removal on word, and the lines in the here-document are not expanded.