Attention

The ShARC HPC cluster was decommissioned on the 30th of November 2023 at 17:00. It is no longer possible for users to access that cluster.

3. Jupyter’s web terminal

You can start a terminal

• Via the top menu bar (File, New, Terminal) or

• Via the Files Launcher tab.

You can use this terminal to perform any command-line-only operation on the cluster, including:

• Managing versions of Notebooks / other code using version control software such as git (as illustrated above);

• Searching for files/directories;

• Configuring Python or R environments (although there is an (enabled) plug-in for creating/selecting environments and installing/upgrading/removing packages using Jupyter’s graphical interface);

• Triggering the automounting of directories not visible in JupyterHub’s file browser.

Having a terminal interface available within the browser negates the need to separately log into the cluster via SSH to access the command-line.

Limitations:

• Not all keyboard shortcuts that typically work in terminal programs work within this web console:

  • tab can be used for tab completion

  • but Ctrl-C kills the program running in the terminal

  • To copy text, select it, right-click and click Copy.

  • To paste text, right-click and click Paste.

• You cannot start graphical programs (e.g. xeyes) from this terminal.