Below are a few basic Praat scripts that I have written. Please feel free to download and edit scripts for your own use.
Load wav files: Loads all sound files in a directory
Load long sound files: Loads all sound files in a directory as 'long sound'
Add a 2 text grid tier: Loads textgrids from a directory and automatically adds a second tier. Can be used to add any nth tier, just change the tier number under 'Insert interval tier'. If you'd like a point tier, change 'interval' to 'point' in the script before running.
Extract pulses from sound file: Loads all sound files in a directory, extracts pulses, saves pulses as a .PointProcess file.
Open sounds in manipulator: Automatically loads audio from a directory in Manipulator view in Praat and saves manipulated file.
Save spectrum as a table: Useful if you want to average over many spectra for visualization
If you'd like to learn to write Praat scripts, I recommend:
Lipani & Stanley's Tutorial: https://joeystanley.com/downloads/190918-praat_scripting#1_creating_a_praat_script
Eleanor Chodroff's Tutorial: https://eleanorchodroff.com/tutorial/praat-scripting.html
If you're completely new to Praat, check out Using Praat for Linguistic Research by Will Styler.