🛠️ Add Jupyter Kernel alteration scripts

[Gary-H9]

Caution

If this is merged, and the image is published, any users that consume the image will have changes made to any kernel.json files in home/joyvan

This PR is being raised in relation to this piece of work.

This PR allows users to run the scripts alter-jupyter-kernels.sh and reverse-alter-jupyter-kernels.sh to update kernels in their home directories for use in JupyterLab.

Summary for alter-jupyter-kernels.sh

This PR updates the script to enhance functionality by:

1. Copying the .local directory from the source location to the target location.

• source: /home/jovyan/.local/share/jupyter/kernels
• target: /home/analyticalplatform/.local/share/jupyter/kernels

1. Editing all kernel.json files in the copied directory to replace instances of jovyan with analyticalplatform.

Script Explanation

Key Features:

1. Copy Operation:

   • The script now copies the entire .local/share/jupyter/kernels directory structure from the SOURCE_DIR (/home/jovyan/.local/share/jupyter/kernels) to the TARGET_DIR (/home/analyticalplatform/.local).
   • Ensures all subdirectories are included in the copy. (I've tested this locally)

2. Kernel Editing:

   • Searches for all kernel.json files within the target directory (/home/analyticalplatform/.local/share/jupyter/kernels).
   • Replaces occurrences of jovyan with analyticalplatform using sed.

Note:

• SOURCE_DIR: Location of the source files.
• TARGET_DIR: Base directory for the copied files.
• BASE_DIR: Subdirectory where kernel.json files are located for editing.

reverse-alter-jupyter-kernels.sh effectively works in reverse.