Skip to main content

Useful linux commands

  • chmod is the command and system call which may change the access permissions to file system objects (files and directories). It may also alter special mode flags. The request is filtered by the umask. The name is an abbreviation of change mode.
  • ls is used to list files
  • ps a is used to list the processes running
  • shutdown now is used to shutdown the system
  • sudo service lightdm  restart used to log out from the current user
  • sudo add-apt-repository ppa:<ppa_name>
Labels:

Comments

Post a Comment

Popular posts from this blog

What does sudo apt-get autoremove do ?

sudo apt-get autoremove Whenever you install an application (using  apt-get ) the system will also install the software that this application depends on. It is common in Ubuntu/Linux that applications share the same libraries. When you remove the appplication the dependency will stay on your system. So  apt-get autoremove  will remove those dependencies that were installed with applications and that are no longer used by anything else on the system.
Post a Comment
Read more

How to install .run files ?

Occasionally, some applications and games (eg. some from the Humble Indie Bundle) have .run installers. Before installing using these, check to see if: it is available from the Software Centre it is available as a .deb file, which will open in the Software Center You can install .run files from the graphical interface, but using a terminal is more likely to give you useful feedback. To install a .run file you need to: make it executable. execute it This is because .run files are just executable programs that do some unknown magic to install the program. This is similar to what .exe installers do on Windows and is different to the normal methods (at best, using the Software Centre, at worst using .deb files) in which applications are installed in a standard way and can be easily removed. Graphical Method Right click on the file in the file manager and click 'Properties'. Click the 'Permissions' tab and tick the box that says 'Allow executing fil...
Post a Comment
Read more

Simple Python HTTP Server on Linux

Sometimes we need to share files and folders quickly. Often emailing stuff to people tends to be cumbersome. I have noticed that creating a simple http server comes in really handy in such scenarios. Fortunately in linux, it's really simple to create a http server with Python if you don't want to mess around with apache or the likes. All it takes is a single line of code. Okay, let's cut to the chase. Here's how you do it : 1.Change your pwd to the folder that you would like to share cd /home/some_directory 2.Once you have done that, type in the following: sudo python -m SimpleHTTPServer 80 This will create a http server at port 80 and you will get the following message : Serving HTTP on 0.0.0.0 port 80 ... Now open a browser and type http://192.168.1.2:80 assuming that your ip address is 192.168.1.2 Press ctrl+c to stop the server
2 comments
Read more