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This lesson discusses covering tracks and teaches participants both simple as well as more complex methods to achieve this. Participants also learn about the purpose of Bash history and Windows logs as well as password cracking. The bash history is a file that stores a history of every command that is run and is updated when a user logs off a system. The bash history can be edited manually, copied, replaced or simply deleted. Participants also learn about the terminal text editor edit with VI, which allows programmers to edit text for Linux as well as the Cp~ and ~Rm commands to remove bash history.