nkfコマンドを使います。
$ brew install nkf
ふつうにwhoisすると
log
$ whois -h whois.nic.ad.jp 182.22.59.229
[ JPNIC database provides information regarding IP address and ASN. Its use ]
[ is restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output, ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'. ]
Network Information: [B%M%C%H%o!<%/>pJs]
a. [IPB%M%C%H%o!<%/%"%I%l%9] 182.22.0.0/17
b. [B%M%C%H%o!<%/L>] YAHOO-NET
f. [BAH?%L>] B%d%U!<3t<02q<R
g. [Organization] Yahoo Japan Corporation
m. [B4IM}<TO"MmAk8}] JP00032461
n. [B5;=QO"MmC4Ev<T] JP00032461
p. [B%M!<%`%5!<%P] ns01.yahoo.co.jp
p. [B%M!<%`%5!<%P] ns02.yahoo.co.jp
p. [B%M!<%`%5!<%P] ns11.yahoo.co.jp
p. [B%M!<%`%5!<%P] ns12.yahoo.co.jp
[B3dEvG/7nF|] 2010/06/03
[BJV5QG/7nF|]
[B:G=*99?7] 2011/09/26 15:59:02(JST)
B>e0L>pJs
----------
B%d%U!<3t<02q<R (Yahoo Japan Corporation)
[B3d$j?6$j] 182.22.0.0/17
B2<0L>pJs
----------
B3:Ev$9$k%G!<%?$,$"$j$^$;$s!#
nkfコマンドを使うと
log
$ whois -h whois.nic.ad.jp 182.22.59.229 | nkf -w
[ JPNIC database provides information regarding IP address and ASN. Its use ]
[ is restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output, ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'. ]
Network Information: [ネットワーク情報]
a. [IPネットワークアドレス] 182.22.0.0/17
b. [ネットワーク名] YAHOO-NET
f. [組織名] ヤフー株式会社
g. [Organization] Yahoo Japan Corporation
m. [管理者連絡窓口] JP00032461
n. [技術連絡担当者] JP00032461
p. [ネームサーバ] ns01.yahoo.co.jp
p. [ネームサーバ] ns02.yahoo.co.jp
p. [ネームサーバ] ns11.yahoo.co.jp
p. [ネームサーバ] ns12.yahoo.co.jp
[割当年月日] 2010/06/03
[返却年月日]
[最終更新] 2011/09/26 15:59:02(JST)
上位情報
----------
ヤフー株式会社 (Yahoo Japan Corporation)
[割り振り] 182.22.0.0/17
下位情報
----------
該当するデータがありません。