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Lesser Known Hacks

linux-security-linux-basics-basics | Level: Easy  | Total Lab Runs: 0 | Premium Lab

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These hacks and tricks can come handy while dealing with different scenarios.


Objective: Try the following less known hacks.

  1. Use python to start a webserver in the present working directory. Open another terminal and do a curl request to it.

  2. View bash command history.

  3. Fire a command and make sure it is not captured in the bash command history.

  4. List all lines of a file in reverse order (i.e. last line first).

  5. Delete all content of a file with one line command . 

  6. Write output  of a command (say ps -ef) to three files at the same time.

  7. Generate MD5 or SHA1 hash of a file

  8. Find previous fired commands from bash history using reverse search.

  9. Check information of a file.

  10. Use screen to preserve the console output and running tasks in case of connection break (mostly useful while working on remote machines).

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