是的，您可以：使用readarray：

printf "Enter the domain names: "
readarray -t arr
# Do something...
declare -p arr

上面的最后一行只是记录了bash现在看到的数组。
用户可以键入或复制并粘贴数组名。当用户完成后，他在一行的开头键入Ctrl-D。
示例：

$ bash script
Enter the domain names: domain1.com
domain2.com
domain3.com
domain4.com
declare -a arr='([0]="domain1.com" [1]="domain2.com" [2]="domain3.com" [3]="domain4.com")'

使用loop：

#!/bin/bash

arrDomains=()
echo "Enter the domain names :"

while read domain
do
    arrDomains+=($domain)
    # do processing with each domain
done

echo "Domain List : ${arrDomains[@]}"

输入所有域名后，按ctrl + D结束输入。

所以@John1024的答案确实让我走上了正确的道路，但它仍然是 * 超级 * 困惑我如何让这个数据不仅分配给一个变量，而且重要的是，保留空格和换行符。
在回答了很多StackOverflow和StackExchange之后，我创建了下面的代码片段，它来自我的Uber BashScripts project@wifi-autorun-on-connect.installer：

#############################################################
# Grab the script from an existing file -or- user input...  #
#                                                           #
# Copyright © 2020 Theodore R. Smith                        #
# License: Creative Commons Attribution v4.0 International  #
# From: https://github.com/hopeseekr/BashScripts/           #
# @see https://stackoverflow.com/a/64486155/430062          #
#############################################################
function grabScript()
{
    if [ ! -z "$1" ] &&  [ -f "$1" ]; then
        echo $(<"$1")
    else
        echo "" >&2
        echo "Please type/paste in bash script you wish to be run when NetworkManager connects to '${HOTSPOT}'." >&2
        echo "Press CTRL+D when finished." >&2
        echo "You should start with '#!/bin/bash'..." >&2
        echo "" >&2

        # Read user input until CTRL+D.
        # @see https://stackoverflow.com/a/38811806/430062
        readarray -t user_input

        # Output as a newline-dilemeted string.
        # @see https://stackoverflow.com/a/15692004/430062
        printf '%s\n' "${user_input[@]}"
    fi
}

SCRIPT=$(grabScript "$2")

# Preserve white spaces and newlines.
# @see https://stackoverflow.com/a/18018422/430062
echo "$SCRIPT"

下面是我在必须使用BASH脚本请求pem格式证书的情况下所做的事情：

echo "Paste your multi-line text into the terminal, ending with two blank lines"
while [ 1 ]; do
  read line
  echo $line >> file.txt
  lastline=$line
  if [ "${lastline}${line}" == "" ]; then break; fi
done