How to check RAM size in Ubuntu using commands

Check RAM Size in Ubuntu

Sometime, we may need to know the System’s RAM size to check whether it meets a software’s requirements or to find available free RAM during application

To view the total available RAM type the following command


Output – (displays the total available RAM in KB)

total          used        free      shared  buff/cache   available
Mem:        1014488      183236      194352        5708      636900      787780
Swap:             0           0           0

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How to check ubuntu a 32 bit or 64 bit?


Sometime you may need to know whether you are running a 32 bit or 64 bit Operating System to choose which version of software to download.

There are prominent 2 ways to find out

uname -a

if it is a 32bit Ubuntu, the output looks similar to below. Highlighted i686 or i386 identifies OS is 32bit

Linux UbuntuBox 3.19.0-59-generic #66~14.04.1-Ubuntu SMP Fri May 13 17:27:10 UTC 2016 i686 i686 i386 GNU/Linux

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How to track changes in a word document

When there are multiple persons working on a document, it may be difficult to know who made which changes and where its been made. The ‘Track Changes’ feature in Microsoft Word allows you to see the changes made to the document and who made them.

To enable ‘Track Changes’ feature, follow the steps

  • Click the Review tab in the Ribbon 
  • Under the Tracking Group click on Track Changes or use shortcut key Ctrl + Shift + E. Any changes made to this document will be shown highlighted in different colour with user information

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3 Useful Excel Tips For Dummies – How-To

All of us who use computer at a point of time come across a situation to use Excel due to its efficient way of handling data. Listed are few excel tips for beginners who starts working with excel.

For Newbies :

What is Excel?

Excel is an electronic spreadsheet program used for storing, organizing and manipulating data.

Tip 1 : Wrap the Text

Wrapping a text feature helps to make the content visible in a cell without increasing the width of the cell.

Step 1: Select the text to be wrapped.

excel word wrap

Step 2:  Click Wrap text button (as shown in the image)

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Disable backward and forward button using javascript

I was facing the same problem and searching for a solution. I got no exact solution, so i wrote my own code.

STEP 1: Before writing the code i analyzed what the browser shortcuts for moving through the history. The shortcuts of different browsers to move through the history are :

given in format keyboard shortcuts (its key value)

Mozilla Firefox

Backspace (8) – 1 page back throught the history

Alt + left arrow (37) – 1 page back through the history

Alt + right arrow (39) – 1 page forward through the history

Shift + Backspace (8) – 1 page forward through the history

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How to create a Jar file in command prompt

This article will tell you how to create a jar file using Java’s Jar command in command prompt. Basically jar file format is formed from ZIP file format. Jar files are mainly used for archiving, compression and decompression.

Note : Java should be installed in your system to execute Jar command and also correct java path should be set up before starting.

Using Jar command you can create,view,delete,update/modify,extract and execute the jar files.

1. Creating a Jar file


c – create JAR file
f – Output should go to file rather than stdout (terminal)
JAR_NAME – Name of the Jar file (can give any filename you want). Filename should be given .jar extension
INPUT_FILENAME(S) – One or more files to be included in the JAR file and each file will be separated by a space
DIRECTORY_NAME – If the “input files” are directory, then the contents of the directory (given in the DIRECTORY_NAME) are added to the jar recursively.

Note : c and f should be in any order but should not have any space in between them

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How to disable right click in Windows xp / Windows 7

If you do not want to give right click access to the users for some security reasons. Follow the below mentioned steps:

Step 1:
Goto “Start -> Run” and Type “gpedt.msc” (this will open Local Group Policy Editor)

Step 2:
In the left side of the editor, select
“User Configuration -> Administrative Templates -> Windows Components -> Windows Explorer”

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