Every so often I have the need to rename a massive amount of files. This generally happens when there is a pattern in the name and I need to change it to a different pattern.

There are a number of ways to do this, but I often use the following short script to do it. Simply modify the patterns to fit the current need.

# A little script to perform a mass renaming of files.
# Adjust accordingly.
for file in [0-3][0-9].md; do
        echo git mv "$file" "2022.02.$file"
done