The procedure for installation of SARG (Squid Analysis Report Generator) is given below:

Download the Source tar from the site : http://web.onda.com.br/orso/sarg.html 

Do not forget to download the patch. The file is available from here and the patch here.

Copy the file in a suitable directory under your home. 

The list of commands run is given below:

# tar -xvf sarg-1.4.1.tar.gz
# cd sarg-1.4.1
# ./configure
# make
# make install

Now copy the patch file sarg-1.4.1-index.sort.patch in the directory sarg-1.4.1 and run the command :

# patch -p0 < sarg-1.4.1-index.sort.patch
# make install

The data output can be modified from the file sarg.conf located in /usr/local/sarg subdirectory. The input directory for the access log file is by default /var/log/squid/access_log. However, in your case, if its different please change it in the sarg.conf file. Similarly, the output directory is /var/www/html/squid-reports/. However, you can change it to suit your requirements. You can as well decorate the page and set your own fonts and other headers etc. 

For getting the users' names, create a *usertab* as found in the sarg.conf file. 

For running the log analysis tool just login as root and run # sarg &. 

For scheduling the job, you can put it in the cron. The appropriate line that needs to be put in the crontab is : 
# minutes hours day-of-month month weekday command. 
00 23  *  *   *   1-7  sarg

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