Wednesday, April 19, 2017

interface

hi 
 yesterday i learned  new subjects from class....
 so i share with you  what i understand ....๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ


๐Ÿ’ฅInterface
     
           interface is a two separate components of a computer system exchange informations.


๐Ÿ’ฅUser interface means:

            The data is transferred between the user & the computer system.

๐Ÿ’ฅTwo types interface

      ๐Ÿ’ฃcommand line interface (for typing commands directly to computer's  operating system.    eg: Unix Ms.Dos )
           
                          ๐Ÿ˜บ    command Prompt (this interface available in windows operating system )

                           ๐Ÿ˜บ   terminal  (this available in Ubuntu)                     

      ๐Ÿ’ฃgraphical user interface(this is a way to communicate what we want a computer applications. using graphical symbol eg icons, arrows   )

                                        โ˜บGUI easier to learn & use. because commands do not need to memorized .    (eg browsers Microsoft program )



This is example for diffident between CLI and GUI






๐Ÿ‘ธ    Following few commands we can use to Terminal ......

           ๐Ÿ’ง ls                    list the files in our current directory

           ๐Ÿ’ง cd                  change directory
           ๐Ÿ’ง ~                    our home directory

           ๐Ÿ’งpwd               path working directory
           ๐Ÿ’ง cd ..              direct up one directory

           ๐Ÿ’ง mkdir           create folder

           ๐Ÿ’ง cp                 copy the file

           ๐Ÿ’ง mv                move a file to a different locations or will rename the file

           ๐Ÿ’ง rm                 to remove

           ๐Ÿ’ง rmdir            delete folder

           ๐Ÿ’ง rm-r               all directory delete

           ๐Ÿ’ง free               displays amount of free & use memory

           ๐Ÿ’ง touch           make text files

           ๐Ÿ’ง tree               display views of folders

           ๐Ÿ’งfind                search

           ๐Ÿ’ง ed, vi            text editor

           ๐Ÿ’ง sudo apt-get  install       install the package
           ๐Ÿ’ง sudo apt-get purge        install the packages
           ๐Ÿ’ง โ†‘ or ctrl+p                          go to previous commands
           ๐Ÿ’ง โ†“ or  ctrl+n                         go to next commands

       






















 














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