Top 10 command lines of Linux

Posted by Jeffery Yee | 7:19 PM

Top 10 command lines of Linux


1.   sudo !!

    execute the previous command as root user

2.   python -m SimpleHTTPServer

    set up the simplest Web server using Python, and you can visit it through http://localhost:8000, or change localhost to the ip or domain name of the machine.

3.   :w !sudo tee %

    When you open a file without the writing privilege or not as the root user, you can use this one to save the change you have made.

4.   cd - 

    change the directory to the one last visited.

5.   ^foo^bar

    change foo in the previous command to bar, and then execute this command.

6.   cp filename{,.bak}
 
     fast bakup or copy files.

7.   mtr google.com

     traceroute + ping.

8.   !whatever:p 

     search the commands history, but not execute any.

9.   ssh-copy-id user@host

     copy ssh keys to user@host such that you can ssh login the host without inputting the password.

10.  ffmpeg -f x11grab -s wxga -r 25 -i :0.0 -sameq /tmp/out.mpg

      video the Linux desktop activity and save to /tmp/out.mpg


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