* Run a bash script

** Write script

After writing, save the file with '.sh' extension. This script will
echo the words within quotes

   #+begin_src bash
     #!/bin/bash
     echo "Hellow hu-hu"
   #+end_src

   #+RESULTS:
   : Hellow hu-hu

** Option a: make it executable

Use the command "chmod" to change permissions for the file

#+begin_example bash
 chmod +x script.sh
#+end_example

Then, execute

#+begin_example bash
./script.sh
#+end_example

** Option b: run from terminal

#+begin_example bash
bash script.sh
#+end_example

Or

#+begin_example bash
sh script.sh
#+end_example

PS: to execute the script from any place  in the machine include
the script in a directory that can be read from ~$PATH~

** Option c: run from graphical interface