Linux Command Directory


Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.



lastb

lastb [options] [username] [ttynumber]

Display a list of recent bad login attempts (from the /var/log/btmp file). Accepts the same option flags and arguments as last.


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