chown -R john:john /path/to/directory
cp *.log /path/to/backup/
dstat -cdngy
find . -type f -mtime -7
iostat -dx 1
lsof -p 1234
netstat -tulnp | grep 8080
sed -i 's/foo/bar/g' *.txt
systemctl list-units --type=service
tar -czvf backup.tar.gz /path/to/directory
