Bash history commands

A few commands to mess with your shell command line history:

If you want to:	Then you just type	Notes
View the last N commands you ran	$ history N
Erase all shell history	$ rm ~/.bash_history	Your commands are normally stored in a hidden file called .bash_history, in your home directory.
Turn off the logging of history for your terminal session	$ unset HISTFILE
Run a command without it being recorded in the history	Add a space BEFORE the command.
Log commands in a different file	$ HISTFILE= path_to_file/name_of_file
Record the time of a command	$ HISTTIMEFORMAT="%Y-%m-%d %H:%M:%S"

Physicist's Block