Analyse Access Log for Nginx and Apache

Run below command to list the number of hits per IP address from access log:

cat access.log | awk '{print $1}' | sort -n | uniq -c | sort -nr

The command below will provide the top 50 Hits sorted by IP address:

cat access.log | awk '{print $1}' | sort -n | uniq -c | sort -nr | head -50

The command below will list the unique IP address accessing the system:

awk '{print $1}' access.log|sort -u