First create a file in /root dir :

cd /root nano clearlog.sh

Then paste this Bash script and save it by press ctrl+x:

#!/bin/bash truncate -s 0  /usr/local/apache/logs/*bytes truncate -s 0  /usr/local/apache/logs/*log truncate -s 0  /usr/local/apache/domlogs/*bytes truncate -s 0  /usr/local/apache/domlogs/*log truncate -s 0 /var/log/messages truncate -s 0 /var/log/maillog truncate -s 0 /var/log/*log truncate -s 0 /opt/alt/*/usr/var/log/php-fpm.log truncate -s 0  /usr/local/cwpsrv/logs/access_log truncate -s 0  /usr/local/cwpsrv/logs/error_log truncate -s 0  /var/log/cron truncate -s 0  /var/log/secure truncate -s 0  /var/log/cwp/services_action.log truncate -s 0  /var/log/cwp/cwp_sslmod.log truncate -s 0  /var/log/cwp/cwp_cron.log truncate -s 0  /var/log/cwp/cwp_backup.log truncate -s 0  /var/log/cwp/activity.log rm -rf /var/log/maillog-* rm -rf /var/log/monit.log-* rm -rf /var/log/spooler-* rm -rf /var/log/messages-* rm -rf /var/log/secure-* rm -rf /var/log/pureftpd.log-* rm -rf /var/log/yum.log-* rm -rf /var/log/monit.log-* rm -rf /var/log/cron-*

Change the permission :

chmod 755 /root/clearlog.sh

Now run this command to run the clear log script:

sh /root/clearlog.sh

Thats it the logs will be cleared you can go and check to the respected locations of the log.

Cron Job :

You can also create cron job like below by following solution 2 and create this cron job task according to your needs :

TO run DAILY :

0 0 * * * /usr/bin/sh /root/clearlog.sh

TO run Weekly :

0 0 * * 0 /usr/bin/sh /root/clearlog.sh

TO run Monthly:

0 0 1 * * /usr/bin/sh /root/clearlog.sh

You did a great job it will save lot's of space for you from your server.