Show running containers namespaces linux

Inspect cgroup hierarchy systemd-cgls Count lines in all logs find /var/log -name '*.log' -exec wc -l {} + | sort -rn | head -20 Follow multiple log files tail -f /var/log/syslog /var/log/auth.log Search compressed logs zgrep -i 'error' /var/log/syslog.*.gz Rotate logs manually logrotate -f /etc/logrotate.conf