Programming :: [Bash] Denied Script * Opinion's Welcome *?

wrote a simple script that will Parse Secure log find the failed login attempts, and strip out the IP Address. Then take those address and create a file listing them. Thx to colucix for the awk understanding which is then fed into Nmap grabbing OS and Ports that are open on that remote machine -> output is shoved threw Sed only grabbing the Characteristics I felt were need. The output from that is piped into another Directory called Nmap/ and files are created with the output and ipaddress for the file name;

Then that same list that was fed into Nmap is fed into Whois and output is shoved into SED striping out the non-sense getting only valuable info. Those are then put into the Whois/ with the file names being the IP Address and whois info dumped into them.There are lots of paths I can go to continue the chain with all this info... But for now it just merges the Whois Info and Nmap Info into a Master File which is then fed to ssmtp to send an email with the Info to whatever address you like.Put it in a cron job, and it executes every night at 11pm with the secure log being rotated out at 1105pm. Cycle is then repeated. Like I said this is really my first Bash Script.

I have done Batch script with, remote printer mappings, and default printer setups. But thats here nor thereWhat I am really looking for since this script is functional, is your criticism and your technique on another way of accomplishing the objective your critiquing. Just trying to build my skills and look at this process from another perspective.

Code:
echo 'Grabbing the IPs'
# Grabbing IP's from secure log, putting them in the ip array, and then spiting out the

[code]....