Use a text editor

Nano Cheatsheet

After logging in to your HPC cluster, start a terminal and type nano to start the text editor called ‘nano’.

• CTRL-O: save

• CTRL-X: quit

The clusters provide these text editors on the command line:

• nano

• vi, vim

• emacs

We recommend nano unless you are used to another editor:

• Text editors at HPC2N

• Text editors at UPPMAX

• Any of the above links would be helpful for you.

Exercise

• Let’s make a script with the name example.py

$ nano example.py

• Insert the following text

# This program prints Hello, world!
print('Hello, world!')

• Save and exit. In nano: <ctrl>+O, <ctrl>+X

You can run a python script in the shell like this:

$ python example.py
# or
$ python3 example.py