Find and delete files

Using find, xargs and rm. Alternatively use find [whatever] -delete to achieve the same thing.

Example 1

Find and remove all files with the ".txt" extension within the current directory and its subdirectories.

find . -type f -name "*.txt" -print0 | xargs -0 rm

Example 2

Find files that have been:
Created in the last hour

find . -type f -cmin -60

Modified in the last hour

find . -type f -mmin -60

Accessed in the last hour

find . -type f -amin -60

For directories -type d or skip type entirely

Example 3

Find all folders but skip hidden folders

find /path/to/search -type d -not -path '*/\.*'