Domain Expiration Check Shell Script

I have already written a shell script to check/monitor domain renew / expiration date here. Now I have modified matty’s domain-check script to support additional C/TLDs .in, .biz, .org and .info domains. I’ve also added 5 seconds delay to avoid whois server rejecting the query. This script checks to see if a domain has expired. It can be run in interactive and batch mode and provides facilities to alarm if a domain is about to expire in advance.

Sample usage

Display expiration date and registrar for theos.in domain:
$ domain-check-2 -d {domain-name}
$ domain-check-2 -d theos.in
Sample outputs:

Domain                              Registrar         Status   Expires     Days Left
----------------------------------- ----------------- -------- ----------- ---------
theos.in                            et4India (R7-AFIN Valid    28-Oct-2009   799  

You can also get an email if theos.in going to expire in 30 days
$ domain-check-2 -a -d theos.in -q -x 30 -e vivek@nixcraft.com
However most killer feature is you can read list of domain names from a file such as mydomains.txt (list each domain on a new line):
$ domain-check-2 -a -f mydomains.txt -q -x 30 -e vivek@nixcraft.com
OR
$ domain-check-2 -f mydomains.txt
Sample outputs:

Domain                              Registrar         Status   Expires     Days Left
----------------------------------- ----------------- -------- ----------- ---------
theos.in                            et4India (R7-AFIN Valid    28-Oct-2009   799
nixcraft.org                        oDaddy.com, Inc.  Valid    13-Aug-2009   723
vivekgite.com                       MONIKER ONLINE SE Valid    18-aug-2010   1093
cyberciti.biz                                         Valid    30-Jun-2009   679
nixcraft.info                       oDaddy.com Inc. ( Valid    26-Jun-2009   675
nixcraft.net                        GODADDY.COM, INC. Valid    11-dec-2009   843  

You can setup cron job as follows to get an email notification about domain expiration:
@daily /path/to/script -f /path/to/mydomains.txt -e admin@example.com

Quick installation

Use wget command to download and install domain-check script:
$ wget https://raw.githubusercontent.com/nixcraft/domain-check-2/master/domain-check-2.sh
$ wget https://raw.githubusercontent.com/nixcraft/domain-check-2/master/domain-list.txt
$ sudo mv domain-check-2.sh /usr/local/bin/
$ sudo chmod +x /usr/local/bin/domain-check-2.sh
$ /usr/local/bin/domain-check -d vivekgite.com

Getting help about the script

$ domain-check-2.sh -h
Sample outputs:

Usage: domain-check-2.sh [ -e email ] [ -x expir_days ] [ -q ] [ -a ] [ -h ]
          {[ -d domain_namee ]} || { -f domainfile}
 
  -a               : Send a warning message through email 
  -d domain        : Domain to analyze (interactive mode)
  -e email address : Email address to send expiration notices
  -f domain file   : File with a list of domains
  -h               : Print this screen
  -s whois server  : Whois sever to query for information
  -q               : Don't print anything on the console
  -x days          : Domain expiration interval (eg. if domain_date < days)

Make sure your run domain-check-2 script using a Unix/Linux cron jobs. For more info and PR see my github page.