How to low disc space in Nginx ubuntu

1. Empty tmp log file by

sudo truncate -s0 /var/log/btmp.1

2. Check file size by

sudo du -h --max-depth=1 -x

3. Delete mysql log

• Expire log file in 3 days : Go to /etc/mysql/mysql.conf.d/mysqld.cnf and set the following parameter and restart mysql

binlog_expire_logs_seconds	= 259200

Purge log files

4.