Exuse: I know there are many questions about nested quotes but the answers to those I found are so specific to the questions that I wasn't able to apply them.
I need to use multiple nested bash commands. The first two layers are
x-terminal-emulator -e "bash -c \"COMMAND1; COMMAND2; exec bash \""
To open a terminal and run multiple bash commands in it.
For COMMAND1, I want to assign a value to a variable by the means of read VAR. In COMMAND2, I want to substitute an expression in a file with the variable's value. Since sed -i 's#EXPRESSION#$VAR#' ~/Desktop/edit needs a third layer of quotes, the only option left is unsing single quotest but that would of course ignore the variable.
I have tried many things but the outcome was always that either the expression was substituted with '' or with '$VAR' or with 'VAR'.
I ask for help because I really don't know what to change here. I am greatly grateful for any help!
TL;DR: How do I correctly substitute EXPRESSION with user input here if this is wrong:
x-terminal-emulator -e "bash -c \"read VAR; sed -i 's#EXPRESSION#$VAR#' ~/Desktop/edit; exec bash \""