How to send message to users logged on to a UNIX terminal?

One of the cool features of UNIX is that you don't need to have any software installed to send message to users logged on to that machine. There is a handy command called "write" which enables you to do this. Here is the syntax of this command:

$write username tty

Now the question arises, how to know the tty of a particular user. The "who" command of UNIX comes in to play here. Just shoot "who" command on your terminal and see the magic. You will receive the list of all users logged on to that machine with their tty. Below is an example.

$who
root     :0           May  7 03:51
root     pts/1        May  7 03:51 (:0.0)
root     pts/2        May  7 03:51 (:0.0)
user5    pts/10       May  7 04:17 (dhcp-dwf1-4-10-176-162-74)
user8    pts/13       May  7 04:12 (dhcp-dwf1-4-10-176-162-180)
user9    pts/15       May  7 04:12 (10.176.146.212)
user7    pts/14       May  7 04:23 (dhcp-dwf1-4-10-176-162-118)
user12   pts/18       May  7 04:14 (dhcp-dwf1-4-10-176-162-119)
user11   pts/23       May  7 04:14 (dhcp-dwf1-4-10-176-162-31)
user1    pts/22       May  7 04:27 (dhcp-dwf1-4-10-176-162-125)
user15   pts/24       May  7 04:14 (dhcp-dwf1-4-10-176-162-65)
user6    pts/12       May  7 04:14 (dhcp-dwf1-4-10-176-162-120)
user2    pts/28       May  7 04:14 (dhcp-dwf1-4-10-176-162-60)
user7    pts/30       May  7 04:14 (dhcp-dwf1-4-10-176-162-118)
user4    pts/31       May  7 04:14 (dhcp-dwf1-4-10-176-162-72)
user10   pts/32       May  7 04:14 (dhcp-dwf1-4-10-176-162-68)
user14   pts/33       May  7 04:14 (dhcp-dwf1-4-10-176-162-27)

If you want to send message to user8, issue following command at your terminal:

$write user8 pts/13

Now write any message you want. To end the message, press Ctrl+D. Your message would be sent.

How to take a Video Snap Shot in VLC?

In this post i am going explain Longer way and Short way also.

Longer Way:

                     In VLC Task Bar you will find Different tabs like "Media, Audio, Video...." etc.  In that Select 

Video--> Take Snap Shot, this is enough.

     It will store into  My Documents\My Pictures   

Note:  I am telling about Windows only.

Short Way:

                              Press SHIFT+S.

               It will store into  My Documents\My Pictures

 You can change this Hot Keys in VLC

    Tolls--> Preferences --> Hot Keys

  Note:  I am telling about Windows only.

How to lock a folder in windows with password,without using any software-- In Four Simple Steps

Four Steps are enough to do this:

Step 1:

               

               Right click the mouse on desktop or any Drive.

Step 2:

            

       Select "NEW" ---> Compressed(zip) folder.

Step 3:

             

         Add the files what you want to protect using password into Compressed folder.

Step 4:

             Left side top you find "FILE"---> Add a password.

Then

         "  Add your own password."

               

                 

10 Most Useful Search Engines

Click below link:

http://netforbeginners.about.com/od/navigatingthenet/tp/top_10_search_engines_for_beginners.htm