mkdir file_lists
find . -name '*.pdf' -o -name '*.PDF' > ./file_lists/all_pdf_files.txt
find . -name '*.pdf' -o -name '*.PDF' -mtime +365 > ./file_lists/pdf_files_mtime_gt_1yr.txt

find . -name '*.jpg' -o -name '*.JPG' -o -name '*.gif' -o -name '*.GIF' -o -name '*.png' -o -name '*.PNG' > ./file_lists/all_image_files.txt

find . -name '*.log' -o -name '*.LOG' > ./file_lists/all_log_files.txt

find . -name '*.css' -o -name '*.CSS' -o -name '*.js' -o -name '*.JS' > ./file_lists/all_design_assets_files.txt

find . -name '*.ram' -o -name '*.RAM' -o -name '*.aif' -o -name '*.AIF' -o -name '*.mp3' -o -name '*.MP3' > ./file_lists/all_audio_files.txt
find . -name '*.ram' -o -name '*.RAM' -o -name '*.aif' -o -name '*.AIF' -o -name '*.mp3' -o -name '*.MP3' -mtime +365 > ./file_lists/audio_files_mtime_gt_1yr.txt

find . -name '*.html' -o -name '*.HTML' -o -name '*.htm' -o -name '*.HTM' > ./file_lists/all_html_files.txt
find . -name '*.html' -o -name '*.HTML' -o -name '*.htm' -o -name '*.HTM' -mtime +365 > ./file_lists/html_files_mtime_gt_1yr.txt

Shell script to make lists of certain file types in a web site file system

search, unix, find

Other