How to Find a File by Name and Search Text on Linux

find /etc -name "sshd_config"

/etc/ssh/sshd_config

sudo find / -xdev -type f -size +1G 2>/dev/null        # larger than 1 GB
find /var/www -type f -mtime -1                       # changed in the last 24 hours
find /tmp -type f -mtime +7                           # older than 7 days
find /home/alex -type f -newer /home/alex/marker.txt  # newer than another file
sudo find /var/www -user www-data -perm -o+w          # files anyone can write to

find /var/log -name "*.gz" -exec ls -lh {} +

find /home/alex/backups -name "*.tar.gz" -mtime +30 -print
find /home/alex/backups -name "*.tar.gz" -mtime +30 -delete

grep -rn "server_name" /etc/nginx

/etc/nginx/sites-available/example.com:4:    server_name example.com www.example.com;

grep -Ev "^\s*(#|$)" /etc/ssh/sshd_config

ps aux | grep nginx
sudo ss -tulpn | grep ":443"

echo "hello from alex" > ~/findme.txt
find ~ -name "findme.txt"
grep -rn "hello from" ~