One for all,all for one.: 2月 2013

2013年2月26日星期二

lastcomm - linux show all user command history

The ac command displays statistics about how long users have been logged on.
The lastcomm command displays information about previous executed commands.
The accton command turns process accounting on or off.
The sa command summarizes information about previously executed commmands.

ls                      vivek  pts/0      0.00 secs Mon Nov 13 23:43
rm                      vivek  pts/0      0.00 secs Mon Nov 13 23:43
vi                      vivek  pts/0      0.00 secs Mon Nov 13 23:43
ping              S     vivek  pts/0      0.00 secs Mon Nov 13 23:42
ping              S     vivek  pts/0      0.00 secs Mon Nov 13 23:42
ping              S     vivek  pts/0      0.00 secs Mon Nov 13 23:42
cat                     vivek  pts/0      0.00 secs Mon Nov 13 23:42
netstat                 vivek  pts/0      0.07 secs Mon Nov 13 23:42
su                S     vivek  pts/0      0.00 secs Mon Nov 13 23:38

userhelper is command name of the process
S and X are flags, as recorded by the system accounting routines. Following is the meaning of each flag:

S -- command executed by super-user
F -- command executed after a fork but without a following exec
D -- command terminated with the generation of a core file
X -- command was terminated with the signal SIGTERM

vivek the name of the user who ran the process
prts/0 terminal name
0.00 secs - time the process exited

Reference :

How to keep a detailed audit trail of what’s being done on your Linux systems

2013年2月24日星期日

Windows 7 效能調校

NOD32 防毒調整：
    關閉使用者提示
    停止檢查更新

我的電腦 -> 關閉系統還原

電源選項 -> 高效能

關閉睡眠功能 powercfg -h off

關閉服務：
    remote registry
    superfetch
    windows search
    Volume Shadow Copy
    security center
    Windows Defender
    ~~computer browser~~

關閉檢查更新 -> 控制台裡：
    Flash Player
    Java
    QuickTime

關閉開機執行 WinKey + R   -> msconfig   ->   啟動
以下保留，其餘視情況決定：
    ctfmon
    Monitor
    egui

UAC

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開機速度測試：

Soluto
https://www.soluto.com/

BootRacer
http://www.greatis.com/bootracer/