Find
Find Files Using Name in Current Directory
# find . -name blaat.txt
./blaat.txt
Find Files Under Home Directory
# find /home -name blaat.txt
/home/blaat.txt
Find Files Using Name and Ignoring Case
# find /home -iname blaat.txt
./blaat.txt
./Blaat.txt
Find Directories Using Name
# find / -type d -name blaat
/blaat
Find PHP Files Using Name
# find . -type f -name blaat.php
./blaat.php
Find all PHP Files in the Directory
# find . -type f -name "*.php"
./blaat.php
./login.php
./index.php
Find and remove Multiple File
# find . -type f -name "*.txt" -exec rm -f {} \;
OR
# find . -type f -name "*.mp3" -exec rm -f {} \;
Find Last 50 Days Modified Files
# find / -mtime 50
Find Last 50 Days Accessed Files
# find / -atime 50
Source:
https://www.tecmint.com/35-practical-examples-of-linux-find-command/