::Command:: 잊기 쉬운 명령어들..

::[chkconfig]::
      # chkconfig --list(--add, --del) [name]
      # chkconfig [--level levels] name <on|off|reset>


::[명령어 백그라운드 실행]::
      # command &
      # fg %1      or    # fg psNum
      # kill %1

::[성능 값알아보기]::  세부사항은 man 참조
      # uptime - Tell how long the system has been running
      # top - Display Linux tasks
      # free - Display amount of free and used memory in the system
      # slabtop - Display kernel slab cache information in real time
      # vmstat - Report virtual memory statistics

::[열린포트확인]:: 
      # lsof -i
      # netstat -tupln