linux - Can a shell script set environment variables of the calling shell? -

I am trying to write a shell script which, when running, will set some environment variables that set the caller's Csh / In tcsh, or

  export FOO = foo  
 
  Sitting FuFu  
 
 

Set it only in sh / bash during execution of the script.

I already know that

  source myscript  

will execute script commands instead of launching a new shell, And this can be set to "collar" environments.

But this is to rub:

I want this script to be able to call either from bash or csh. In other words, I want that the shell user either Be able to run the script and change the environment of their shell. So 'source' will not work for me, because CSS running a user can not source a Bash script, and a user running Bash can not source a CST script.

Is there a proper solution in it, there is no need to write and maintain two versions on the script?

There is a copy of your shell process in the parent environment and in any way No access to the situation. When your shell process eliminates any changes made to your environment, sourcing a script file to configure shell environment is the most commonly used method, you can only use two types of tablet cutting and shell From each one you want to maintain.