Scenario: "Tokelau": Delete from history

Level: Medium

Type: Do

Tags: bash  

Access: Email

Description: Inspired by this nixCraft article.

The objective of this exercise is to delete all the Bash history lines that contain the term foo.

Clearing out or deleting the history file /home/admin/.bash_history is not allowed. Note that in our case, new commands (including the ones to try and delete "foo" from history) are also appended to the history file.

Root (sudo) Access: False

Test: Running history |grep "foo" returns nothing.

The "Check My Solution" button runs the script /home/admin/agent/check.sh, which you can see and execute.

Time to Solve: 15 minutes.