Command line to add text in a file using command line

[bikashh]

Dear experts,

I m new to command line and don not know how to do this simple task using command line.
My problem:

I have a text file, in which I have list of directory paths. So, I want to add a new directory path in between. For this, I need to make space and paste a new path there using command line. Is it possible?

I just have made one line which can go to a specific line number.
command line : start notepad++ path.txt -n26E

I want your help to complete this task.

Thanks in advance
Learner

 

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sed

You could edit an entire document with it (though I suggest not doing that ;-)).

http://www.gnu.org/software/sed/manual/sed.html
http://www.grymoire.com/Unix/Sed.html#uh-0

Here is the windows win32 port of the utility.
http://gnuwin32.sourceforge.net/packages/sed.htm