Once your script has execute privilege, thereafter you can run it like this:
% ./myscript
or if it is situated in directory /home/user1/dro/bin say
% /home/user1/dro/bin/myscript
would execute your script. This is long-winded if you want to run the
the script frequently. To omit the directory path you need to add the current (.) or better,
the specific directory to your PATH
environment variable.
C-shell Cookbook