10 coolest linux single-line commands

The following are the 10 coolest linux single-line commands from the commandlinefu website voted by users.

1. Sudo !!

   Run the previous command in the root account.

2. Python-M simplehttpserver

   Use python to build a simple web server that can be accessed through http: // $ hostname: 8000.

3. : W! Sudo tee %

   You do not need to save the edited file in vim.

4. CD-

   Change to the last accessed directory.

5. ^ Foo ^ bar

   Replace Foo with bar in the previous command and execute.

6. CP filename {,. Bak}

   Quickly back up or copy files.

7. MTR Google.com

   Traceroute + Ping.

8. ! Whatever: P

   Search for command history, but do not execute.

9. $ Ssh-copy-ID user @ host

   Copy SSH keys to user @ host to enable password-less SSH login.

10. FFmpeg-F x11grab-s wxga-R 25-I: 0.0-sameq/tmp/out. mpg

    Recording a video on a Linux Desktop.