bash read multiple lines from user
# Basic syntax:
read -d "~" -p $'Enter your text (type \"~~\" when done):\n' YOUR_TEXT
# Where:
# - -d tells read to continue reading until the specified delimiter is read.
# Here I use ~ as the delimiter
# - -p indicates what to prompt when the script asks for input. I include a
# message to indicate what to type to stop reading. (I say ~~ because in
# my shell, I always seem to have to press it twice to stop reading)
# - YOUR_TEXT is the bash variable that will get the input text