Shutter : A snipping tool for ubuntu

Shutter is an application in linux similar to Snipping Tool in windows.

To install Shutter please give the following command.

sudo apt-get install shutter

To take a screen shot in the application :

1. Open the application by typing shutter.

2. Click selection and you can select the portion on the screen you need.

3. Holding shift key + left double click will capture the selection you have made.

4. Save the selection as you need

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UNIX : How to get record count from zipped file

Sometimes we may need to get records count from file . For that we can use wc -l , command with file name. In some situation the file will be in compressed format . wc -l will not directly work with zipped files . In this case we can do zcat the file and pipe the word count command with it. Example : Let say we have a file cricketData.dat.gz To get word count from the file use : zcat cricketData.dat.gz | wc -l This will give the record count.

Excel : How to pad zeros

Today I got a requirement to format the number in excel cell - to left pad number with zeros.i find the following function very useful to do it. In case one to make the number left padded with "0" s give the formula =TEXT(A1,"0000") In case two even more enhanced form to make it left padded with "0" and add two decimal places give the formula as =TEXT(A2,"0000.00")

Scala

Scala is a object oriented functional type programing language. All variables declared in scala is considered as objects.

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