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Linux lastb command

Linux command Daquan Linux command Daquan

Linux lastb command lists information about the user login system failure.

Lastb instruction execution alone, it reads located in / var / log directory, file name btmp, and the contents of the file

List of user login record of failure, the entire show.

grammar 

lastb [-adRx][-f <记录文件>][-n <显示列数>][帐号名称...][终端机编号...]

Parameter Description:

  • -a sign of the system where the host name or IP address appears in the last line.
  • -d the IP address into a host name.
  • -f <log file> Specifies the log file.
  • -n <Display Columns> or - the number of display columns <Display Columns> Settings listed list.
  • -R Does not display the sign in the host name or IP address of the system.
  • -x Display the system shutdown, reboot, and change the level of execution and other information.

Examples

Login failed for user display 

# lastb 
root   tty7     :1        Thu May 13 11:26 - 11:26 (00:00)  

btmp begins Thu May 13 11:26:39 2014

Linux command Daquan Linux command Daquan