lastコマンド
システム管理者 Unixパワーユーザのためのコマンドリファレンス

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last

ログイン履歴を表示

オプション
a ホスト名を最後列に表示する
d リモートログイン接続元などを表示
n 表示件数の指定。-数字でも同様の結果を得ることができる。
x シャットダウン、ランレベル変更履歴も合わせて表示
R ホスト名を非表示

使用例 
# last 
usr01      pts/1        192.168.56.1     Sat Jul 13 06:00   still logged in
usr01      pts/0        :0.0             Sat Jul 13 06:00 - 06:01  (00:00)
usr01      tty7         :0               Sat Jul 13 06:00   gone - no logout
reboot     system boot  3.0.77-1vl6      Fri Jul 12 20:58 - 06:22  (09:23)
root       pts/1        192.168.56.1     Sat Jul  6 21:45 - down   (00:00)
root       pts/1        192.168.56.1     Sat Jul  6 21:28 - 21:45  (00:17)
usr01      pts/0        :0.0             Sat Jul  6 21:27 - down   (00:18)
usr01      tty7         :0               Sat Jul  6 21:27 - down   (00:18)
reboot     system boot  3.0.77-1vl6      Sat Jul  6 21:26 - 21:45  (00:19)
usr01      pts/0        :0.0             Sat Jul  6 21:24 - down   (00:01)
usr01      tty7         :0               Sat Jul  6 21:23 - down   (00:01) 
        
       
# last -a 
usr01      pts/1        Sat Jul 13 06:00   still logged in    192.168.56.1
usr01      pts/0        Sat Jul 13 06:00 - 06:01  (00:00)     :0.0
usr01      tty7         Sat Jul 13 06:00   gone - no logout   :0
reboot     system boot  Fri Jul 12 20:58 - 06:25  (09:26)     3.0.77-1vl6
root       pts/1        Sat Jul  6 21:45 - down   (00:00)     192.168.56.1
root       pts/1        Sat Jul  6 21:28 - 21:45  (00:17)     192.168.56.1
usr01      pts/0        Sat Jul  6 21:27 - down   (00:18)     :0.0
usr01      tty7         Sat Jul  6 21:27 - down   (00:18)     :0               
  

# last -d 
usr01      pts/1        192.168.56.1     Sat Jul 13 06:00   still logged in
usr01      pts/0        0.0.0.0          Sat Jul 13 06:00 - 06:01  (00:00)
usr01      tty7         0.0.0.0          Sat Jul 13 06:00   gone - no logout
reboot     system boot  0.0.0.0          Fri Jul 12 20:58 - 06:26  (09:27)
root       pts/1        192.168.56.1     Sat Jul  6 21:45 - down   (00:00)
root       pts/1        192.168.56.1     Sat Jul  6 21:28 - 21:45  (00:17)
usr01      pts/0        0.0.0.0          Sat Jul  6 21:27 - down   (00:18)
usr01      tty7         0.0.0.0          Sat Jul  6 21:27 - down   (00:18)


# last -x 
runlevel (to lvl 3)   3.0.77-1vl6      Sat Jul 13 06:01 - 06:26  (00:25)
usr01    pts/1        192.168.56.1     Sat Jul 13 06:00   still logged in
usr01    pts/0        :0.0             Sat Jul 13 06:00 - 06:01  (00:00)
usr01    tty7         :0               Sat Jul 13 06:00   gone - no logout
runlevel (to lvl 5)   3.0.77-1vl6      Fri Jul 12 20:58 - 06:01  (09:02)
reboot   system boot  3.0.77-1vl6      Fri Jul 12 20:58 - 06:26  (09:28)
shutdown system down  3.0.77-1vl6      Sat Jul  6 21:46 - 20:58 (5+23:12)
runlevel (to lvl 0)   3.0.77-1vl6      Sat Jul  6 21:45 - 21:46  (00:00)


# last -R 
usr01      pts/1        Sat Jul 13 06:00   still logged in
usr01      pts/0        Sat Jul 13 06:00 - 06:01  (00:00)
usr01      tty7         Sat Jul 13 06:00   gone - no logout
reboot     system boot  Fri Jul 12 20:58 - 06:26  (09:28)
root       pts/1        Sat Jul  6 21:45 - down   (00:00)
root       pts/1        Sat Jul  6 21:28 - 21:45  (00:17)
usr01      pts/0        Sat Jul  6 21:27 - down   (00:18)
usr01      tty7         Sat Jul  6 21:27 - down   (00:18)