[Ubuntu] Linux 指令筆記

• 將使用者加入Sudoer檔
#sudo adduser sudo


• 使用指定的使用者執行程式
#su -c '${program_name}' ${username}
example:
#su -c 'php test.php' www-data


• 針對某Program發Signal
#ps -aux | grep ${program_name} | grep "grep" -v | awk '{print $2}' | xargs kill -${signal_num}
example:
#ps -aux | grep test.php | grep "grep" -v | awk '{print $2}' | xargs kill -15


• 找尋大於某Size的檔案
#find . -type f -size -4096c
Parameter:
`b' for 512-byte blocks (this is the default if no suffix is used)
`c' for bytes
`w' for two-byte words
`k' for Kilobytes (units of 1024 bytes)
`M' for Megabytes (units of 1048576 bytes)
`G' for Gigabytes (units of 1073741824 bytes)



• 查詢硬體與系統設定的關係
  #lshw
  
  // 查詢網路卡
  #lshw -class network