There are certain jupyter key shortcuts/tricks that helps developers remain more productive.

• To run a cell Shift + enter or ctrl + enter.
• Jupyter notebooks also offers tab completion

• You can also get documentation within jupyter-notebook by hitting shft + tab three times or you can by ? at the end of the function to get docs.

• M for markdown mode and Y for command mode.
• %env This is going to print environment variables.
• %pdb activates pdb debugger.
• %pylab allows to work interactively with numpy and matplotlib.
• %%debug activate debbugging mode in cell.
• %%html renders cell as html.
• %%latex renders cell as latex.
• %%sh shell script.
• %%time time command to see how long it took to run the command.

These are my personal favorites for jupyter-notebook.