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接続もとのIPアドレスを表示するスクリプト

More than 5 years have passed since last update.

SSHとかでサーバーに接続している場合に、接続元(自分のPCとか)のIPアドレスをシェルが知りたいという場合に、そのIPアドレスを抽出するスクリプト。

$ who am i | cut -d '(' -f 2 | sed -e 's/)//g'
192.168.0.1

SSH接続した場合は環境変数のSSH_CONNECTIONでIP取れるんですが、su -しちゃうとクリアされちゃうのでwho am iから取得しています。もっと簡単に出せるコマンドとかないのかな。。。

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