Whois on target and save results to file instantly

x=; whois $x > $x.txt
This can be used in scripts, to find out the origin of target IP etc.
Sample Output
# Query terms are ambiguous.  The query is assumed to be:
#     "n"
# Use "?" to get help.

# The following results may also be obtained via:
# http://whois.arin.net/rest/nets;q=

NetRange: -
NetHandle:      NET-192-168-0-0-1
Parent:         NET-192-0-0-0-0
NetType:        IANA Special Use
NameServer:     BLACKHOLE-1.IANA.ORG
NameServer:     BLACKHOLE-2.IANA.ORG
Comment:        This block is used as private address space.
Comment:        Addresses from this block can be used by                     
Comment:        anyone without any need to coordinate with
Comment:        IANA or an Internet registry. Addresses from
Comment:        this block are used in multiple, separately
Comment:        operated networks.
Comment:        This block was assigned by the IETF in the
Comment:        Best Current Practice document, RFC 1918
Comment:        which can be found at:
Comment:        http://www.rfc-editor.org/rfc/rfc1918.txt
RegDate:        1994-03-15
Updated:        2010-03-15
Ref:            http://whois.arin.net/rest/net/NET-192-168-0-0-1

OrgName:        Internet Assigned Numbers Authority
OrgId:          IANA
Address:        4676 Admiralty Way, Suite 330
City:           Marina del Rey
StateProv:      CA
PostalCode:     90292-6695
Country:        US
Updated:        2004-02-24
Ref:            http://whois.arin.net/rest/org/IANA

OrgTechHandle: IANA-IP-ARIN
OrgTechName:   Internet Corporation for Assigned Names and Number
OrgTechPhone:  +1-310-301-5820 
OrgTechEmail:  abuse@iana.org
OrgTechRef:    http://whois.arin.net/rest/poc/IANA-IP-ARIN

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName:   Internet Corporation for Assigned Names and Number
OrgAbusePhone:  +1-310-301-5820 
OrgAbuseEmail:  abuse@iana.org
OrgAbuseRef:    http://whois.arin.net/rest/poc/IANA-IP-ARIN

# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html

By: sxiii
2011-01-17 03:33:49

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    wget -O /dev/null http://www.google.com
    topher1kenobe · 2009-09-10 14:43:57 2
  • Useful if you f.i. want to block/allow all connections from a certain provider which uses successive netnames for his ip blocks. In this example I used the german Deutsche Telekom which has DTAG-DIAL followed by a number as netname for the dial in pools. There are - as always ;) - different ways to do this. If you have seq available you can use net=DTAG-DIAL ; for i in `seq 1 30`; do whois -h whois.ripe.net $net$i | grep '^inetnum:' | sed "s;^.*:;$net$i;" ; done or without seq you can use bash brace expansion net=DTAG-DIAL ; for i in {1..30}; do whois -h whois.ripe.net $net$i | grep '^inetnum:' | sed "s;^.*:;$net$i;" ; done or if you like while better than for use something like net=DTAG-DIAL ; i=1 ; while true ; do whois -h whois.ripe.net $net$i | grep '^inetnum:' | sed "s;^.*:;$net$i;" ; test $i = 30 && break ; i=$(expr $i + 1) ; done and so on. Show Sample Output

    net=DTAG-DIAL ; for (( i=1; i<30; i++ )); do whois -h whois.ripe.net $net$i | grep '^inetnum:' | sed "s;^.*:;$net$i;" ; done
    drizzt · 2009-08-01 05:28:19 0
  • Outputs multiple whois from a plain text file.

    for domain in `cat list_of_domains.txt`; do echo $domain; whois $domain >> output.txt; done
    pathcl · 2010-02-15 17:13:45 1
  • Allows you to preserve your files when using cp, mv, ln, install or patch. When the target file exists, it will generate a file named XXX.~N~ (N is an auto-incremental number) instead of deleting the target file.

    cp --backup=t source.file target.file
    magmax · 2009-03-12 06:46:13 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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