BashFu to show count of visitors today - M0YNG.uk

Created 2021-06-10

Modified 2021-07-13

Linux

'cos I can't document this in just one toot...

#!/bin/bash

# Tell the server hostname and today's date
echo "Visitors to $(hostname) on $(date +%d/%b/%Y)"
# Search nginx log file for today's date and slice it up to get just IP addresses, then sort them, then get just the unique ones, then count them
HTTPV=$(grep "\[`date +%d/%b/%Y`" /var/log/nginx/access.log |  cut -d" " -f1 | sort | uniq | wc -l)
# same for gopher
GOPHERV=$(grep "\[`date +%d/%b/%Y`" /var/log/gopher |  cut -d" " -f1 | sort | uniq | wc -l)
# same for gemini
GEMINIV=$(grep "`date +'%b %d'`" /var/log/gemini.log | cut -d" " -f11 | sort | uniq | wc -l)
# Tell the counts
echo "HTTP      Gopher  Gemini"
echo "$HTTPV    $GOPHERV        $GEMINIV"

Gives an output like this

Visitors to server.m0yng.uk on 10/Jun/2021
HTTP    Gopher  Gemini
43      2       6

A slightly more advanced version, this tries to get the data for yesterday too (although consistently fails for me with nginx probably due to logrotate), looks for stuff that says it is a bot, and tabulates the output for consistent output.

#!/bin/bash

# Tell the server hostname and today's date
echo "Visitors to $(hostname) on $(date +%d/%b/%Y)"

# Search nginx log file for today's date and slice it up to get just IP addresses, then sort them, then get just the unique ones, then count them
HTTPV=$(grep "\[`date +%d/%b/%Y`" /var/log/nginx/access.log | cut -d" " -f1 | sort | uniq | wc -l)
# What about yesterday?
HTTPY=$(grep "\[`date --date='yesterday' +%d/%b/%Y`" /var/log/nginx/access.log | cut -d" " -f1 | sort | uniq | wc -l)
# Count bots and crawlers 
HTTPVBOT=$(grep "\[`date +%d/%b/%Y`" /var/log/nginx/access.log | grep -iE 'bot|crawler' | cut -d" " -f1 | sort | uniq | wc -l)
HTTPYBOT=$(grep "\[`date --date='yesterday' +%d/%b/%Y`" /var/log/nginx/access.log | grep -iE 'bot|crawler' | cut -d" " -f1 | sort | uniq | wc -l)
# same for gopher (but not the bots, are there bots on gopher?)
GOPHERV=$(grep "\[`date +%d/%b/%Y`" /var/log/gopher | cut -d" " -f1 | sort | uniq | wc -l)
GOPHERY=$(grep "\[`date --date='yesterday' +%d/%b/%Y`" /var/log/gopher | cut -d" " -f1 | sort | uniq | wc -l)
# same for gemini
GEMINIV=$(grep "`date +'%b %d'`" /var/log/gemini.log | cut -d" " -f11 | sort | uniq | wc -l)
GEMINIY=$(grep "`date --date='yesterday' +'%b %d'`" /var/log/gemini.log | cut -d" " -f11 | sort | uniq | wc -l)
GEMINIVBOT=$(grep "`date +'%b %d'`" /var/log/gemini.log | grep -iE 'bot|crawler' | cut -d" " -f11 | sort | uniq | wc -l)
GEMINIYBOT=$(grep "`date --date='yesterday' +'%b %d'`" /var/log/gemini.log | grep -iE 'bot|crawler' | cut -d" " -f11 | sort | uniq | wc -l)

# Tell the counts
echo -e "\e[1;33m" # make it yellow
printf "%-7s%-7s%-7s%-7s%-7s\n" "HTTP" "Bot?" "Gopher" "Gemini" "Bot?" # %-7s = left aligned 7 characters wide string.
echo -e "\e[0m-----------------------------------" # stop being yellow
printf "%-7s%-7s%-7s%-7s%-7s\n" $HTTPV $HTTPVBOT $GOPHERV $GEMINIV $GEMINIVBOT
printf "%-7s%-7s%-7s%-7s%-7s%-9s\n" $HTTPY $HTTPYBOT $GOPHERY $GEMINIY $GEMINIYBOT "Yesterday"

exit

Gives an output like this

Visitors to server.m0yng.uk on 13/Jul/2021

HTTP   Bot?   Gopher Gemini Bot?   
-----------------------------------
585    498    0      9      0      
0      0      0      18     0      Yesterday

-+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-

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