Clean -- remove stale files in commonly dirty directories. "stale" means anything not viewed in over 1 week

clean

#! /bin/bash
#
# PURPOSE:
# Remove stale files in common directories. "stale" means haven't
# viewed in over 1 week. System must write atime
#
# NOTES:
# - check `mount` to confirm atime is set. for my personal machines it
#   will be. we aint launchin rockets!
#
# FIXME:
# - test it
#
# TODO:
# - parameterize `staleness`
# - warn before execution
# - report before/after execution
#
# REFS:
# https://unix.stackexchange.com/questions/8840/last-time-file-opened
# https://unix.stackexchange.com/questions/9496/looping-through-files-with-spaces-in-the-names
#
# Disable spotlight indexing
# http://osxdaily.com/2011/12/30/exclude-drives-or-folders-from-spotlight-index-mac-os-x/

declare -a LINE_OF_SIGHT=(~/Desktop ~/Downloads ~/Documents)

OLD_IFS="$IFS"
IFS=$'\n'

# iterate through each of our "line of sight" directories (any
# directory we want to keep clean) and delete those we haven't
# accessed in over a week. Disable indexing of these directories
for dirtyDir in "${LINE_OF_SIGHT[@]}"
do
    find $dirtyDir -atime +1w -type f -delete
done

# Take out the trash
rm -rf ~/.Trash/*


# If docker is on system, prune unused images
if [ -x "$(command -v docker)" ]; then
    echo "Pruning unused docker images"
    docker system prune -f
fi
# teardown
IFS="$OLD_IFS"

comment out the docker prune bits if that's too aggressive for you