Linux/Unix : Input/Ouput redirection

The output of the commands displayed in the screen is called standard output.

Redirect output to file:

If you want to write the output of command to file then use >

for example : du -k >usage_readable.txt

Each time the command executes, the file content overwritten.

How to test mobile site using mozilla firefox?

All the mobile site developers can not affort to test in different mobile devices. So they normally look for different option, atleast for initial test. Firebox have add-ons to test the mobile sites.

Mobile site developers can use these add-ons to check how the site looks and what need to change to give best look and feel in mobile devices.

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Using the javascript in browser addressbar

Using the javascript in browser addressbar

1. suppose you have a javascript variable called currentStat in your page and want to know its recent value
you can just type javascript::alert(currentStat); in addressbar of the current page and enter

How to concatnate / join two or more cells/columns in excel?

For example you have value in column N and column O from row 20. want to join both value with space.

Join column
1. If you want to join N and O column values and write to column P then write the following in column P of row 20 and enter

Mainframe Copy one file to another file with sorted order and summed up the column and write values

Copy one file to another file with sorted order and summed up the column and write values based on format which you want
Command :
SORT FIELDS=(starting position, length, format of the variable, ascending or descending.
SUM FIELDS=(starting position, length of the variable, format of the variable)
OUTREC FIELDS= (starting position, length of the variable, starting position of field which you want to edited, length of the variable, format of the variable, EDIT=(TTTTTTT))
Example :

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