如果我使用单引号，带有撇号（“不要”）的单词会很烦人：
'Don'"'"'t do that'
如果我使用双引号，美元符号和感叹号就会出错：
"It cost like \$1000\!"
我可以使用另一种引用吗？
编辑：我还应该补充一点，我想直接将此字符串作为命令行参数传递，而不是将其存储在变量中。为此，我尝试使用 DigitalRoss 的解决方案，
$ echo "$(cat << \EOF
Don't $worry be "happy".
EOF)"
但得到
dquote cmdsubst>
按回车后：/。所以此时 ZyX 的建议setopt rcquotes看起来是最方便的。
With zsh you may do
setopt rcquotes
. Then ASCII apostrophes are escaped just like this:
echo 'Don''t'
. Or setup your keymap to be able to enter UTF apostrophes, they have no issues with any kind of quotes (including none) in any shell:
echo 'Don’t'
. Third works both for zsh and bash:
echo $'Don\'t'
.
Neither first nor third can narrow down quote to a single character, but they are still less verbose for non-lengthy strings then heredocs suggested above. With zsh you can do this by using custom accept-line widget that will replace constructs like 'Don't' with 'Don'\''t'. Requires rather tricky regex magic that I can write only in perl; and is probably not the best idea as I can’t pretend I can cover all possible cases before they will hit. It won’t in any case touch any scripts.
我喜欢Zsolt Botykai的发展方向。这是一个适用于任何 Posix shell 的示例。（我还验证了它在粘贴到 SO 服务器时仍然存在。）
$ read -r x << \EOF
Don't $worry be "happy".
EOF
$ echo $x
Don't $worry be "happy".
使这项工作发挥作用的东西；
-r不会\变魔术\EOF不是只是EOF使$不是魔术If you want to assign a quoted text to a variable, you still can use heredocs, like (and it can be a multiline text too):
read -r -d '' VAR <<'ENDOFVAR'
This "will be" a 'really well' escaped text. Or won't.
ENDOFVAR
Bash 语法$'string'是另一种引用机制，它允许类似 ANSI C 的转义序列并扩展为单引号版本。
$> echo $'Don\'t $worry be "happy".'
Don't $worry be "happy".
有关更多详细信息，请参阅https://stackoverflow.com/a/16605140/149221。